10509625064 has 8 divisors (see below), whose sum is σ = 19705547010. Its totient is φ = 5254812528.

The previous prime is 10509625057. The next prime is 10509625073. The reversal of 10509625064 is 46052690501.

It can be written as a sum of positive squares in only one way, i.e., 7032164164 + 3477460900 = 83858^2 + 58970^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×10509625064² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656851559 + ... + 656851574.

Almost surely, 2^10509625064 is an apocalyptic number.

It is an amenable number.

10509625064 is a deficient number, since it is larger than the sum of its proper divisors (9195921946).

10509625064 is a wasteful number, since it uses less digits than its factorization.

10509625064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313703139 (or 1313703135 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 10509625064 in words is "ten billion, five hundred nine million, six hundred twenty-five thousand, sixty-four".