61914932871 has 8 divisors (see below), whose sum is σ = 90058084224. Its totient is φ = 37524201720.

The previous prime is 61914932861. The next prime is 61914932879. The reversal of 61914932871 is 17823941916.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61914932871 - 2⁷ = 61914932743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61914932879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938105011 + ... + 938105076.

It is an arithmetic number, because the mean of its divisors is an integer number (11257260528).

Almost surely, 2^61914932871 is an apocalyptic number.

61914932871 is a deficient number, since it is larger than the sum of its proper divisors (28143151353).

61914932871 is a wasteful number, since it uses less digits than its factorization.

61914932871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876210101.

The product of its digits is 653184, while the sum is 51.

The spelling of 61914932871 in words is "sixty-one billion, nine hundred fourteen million, nine hundred thirty-two thousand, eight hundred seventy-one".