21770410674 has 64 divisors (see below), whose sum is σ = 44397849600. Its totient is φ = 7115802048.

The previous prime is 21770410663. The next prime is 21770410709. The reversal of 21770410674 is 47601407712.

It is a super-2 number, since 2×21770410674² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44702859 + ... + 44703345.

It is an arithmetic number, because the mean of its divisors is an integer number (693716400).

Almost surely, 2^21770410674 is an apocalyptic number.

21770410674 is an abundant number, since it is smaller than the sum of its proper divisors (22627438926).

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

21770410674 is a wasteful number, since it uses less digits than its factorization.

21770410674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167.

The product of its (nonzero) digits is 65856, while the sum is 39.

The spelling of 21770410674 in words is "twenty-one billion, seven hundred seventy million, four hundred ten thousand, six hundred seventy-four".