21060765310 has 32 divisors (see below), whose sum is σ = 40831902720. Its totient is φ = 7775059968.

The previous prime is 21060765263. The next prime is 21060765361. The reversal of 21060765310 is 1356706012.

It is a super-2 number, since 2×21060765310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1590979 + ... + 1604161.

It is an arithmetic number, because the mean of its divisors is an integer number (1275996960).

Almost surely, 2^21060765310 is an apocalyptic number.

21060765310 is a deficient number, since it is larger than the sum of its proper divisors (19771137410).

21060765310 is a wasteful number, since it uses less digits than its factorization.

21060765310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25492.

The product of its (nonzero) digits is 7560, while the sum is 31.

The spelling of 21060765310 in words is "twenty-one billion, sixty million, seven hundred sixty-five thousand, three hundred ten".