7806764125 has 16 divisors (see below), whose sum is σ = 10006167600. Its totient is φ = 6076612800.

The previous prime is 7806764113. The next prime is 7806764149. The reversal of 7806764125 is 5214676087.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2207684196 + 5599079929 = 46986^2 + 74827^2 .

It is not a de Polignac number, because 7806764125 - 2¹¹ = 7806762077 is a prime.

It is a super-2 number, since 2×7806764125² (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, 839350 + ... + 848599.

It is an arithmetic number, because the mean of its divisors is an integer number (625385475).

Almost surely, 2^7806764125 is an apocalyptic number.

It is an amenable number.

7806764125 is a deficient number, since it is larger than the sum of its proper divisors (2199403475).

7806764125 is a wasteful number, since it uses less digits than its factorization.

7806764125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688001 (or 1687991 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 7806764125 is about 88355.8946816793. The cubic root of 7806764125 is about 1983.7655889216.

The spelling of 7806764125 in words is "seven billion, eight hundred six million, seven hundred sixty-four thousand, one hundred twenty-five".