39954749094 has 128 divisors (see below), whose sum is σ = 98882703360. Its totient is φ = 11875507200.

The previous prime is 39954749047. The next prime is 39954749119. The reversal of 39954749094 is 49094745993.

39954749094 is a `hidden beast` number, since 3 + 9 + 9 + 54 + 7 + 490 + 94 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15036214 + ... + 15038870.

It is an arithmetic number, because the mean of its divisors is an integer number (772521120).

Almost surely, 2^39954749094 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39954749094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49441351680).

39954749094 is an abundant number, since it is smaller than the sum of its proper divisors (58927954266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39954749094 is a wasteful number, since it uses less digits than its factorization.

39954749094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403 (or 3397 counting only the distinct ones).

The product of its (nonzero) digits is 44089920, while the sum is 63.

The spelling of 39954749094 in words is "thirty-nine billion, nine hundred fifty-four million, seven hundred forty-nine thousand, ninety-four".