20708387274 has 32 divisors (see below), whose sum is σ = 42022511424. Its totient is φ = 6802012800.

The previous prime is 20708387263. The next prime is 20708387279. The reversal of 20708387274 is 47278380702.

It is not an unprimeable number, because it can be changed into a prime (20708387279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470824 + ... + 512924.

It is an arithmetic number, because the mean of its divisors is an integer number (1313203482).

Almost surely, 2^20708387274 is an apocalyptic number.

20708387274 is an abundant number, since it is smaller than the sum of its proper divisors (21314124150).

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

20708387274 is a wasteful number, since it uses less digits than its factorization.

20708387274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43302.

The product of its (nonzero) digits is 1053696, while the sum is 48.

The spelling of 20708387274 in words is "twenty billion, seven hundred eight million, three hundred eighty-seven thousand, two hundred seventy-four".