10172076785 has 8 divisors (see below), whose sum is σ = 13145453160. Its totient is φ = 7511687424.

The previous prime is 10172076767. The next prime is 10172076791. The reversal of 10172076785 is 58767027101.

It can be written as a sum of positive squares in 4 ways, for example, as 209641441 + 9962435344 = 14479^2 + 99812^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 10172076785 - 2¹⁰ = 10172075761 is a prime.

It is a super-2 number, since 2×10172076785² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78246680 + ... + 78246809.

It is an arithmetic number, because the mean of its divisors is an integer number (1643181645).

Almost surely, 2^10172076785 is an apocalyptic number.

It is an amenable number.

10172076785 is a deficient number, since it is larger than the sum of its proper divisors (2973376375).

10172076785 is a wasteful number, since it uses less digits than its factorization.

10172076785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156493507.

The product of its (nonzero) digits is 164640, while the sum is 44.

The spelling of 10172076785 in words is "ten billion, one hundred seventy-two million, seventy-six thousand, seven hundred eighty-five".