925138865878 has 16 divisors (see below), whose sum is σ = 1421581582080. Its totient is φ = 451302596136.

The previous prime is 925138865839. The next prime is 925138865897. The reversal of 925138865878 is 878568831529.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5987658 + ... + 6140221.

It is an arithmetic number, because the mean of its divisors is an integer number (88848848880).

Almost surely, 2^925138865878 is an apocalyptic number.

925138865878 is a deficient number, since it is larger than the sum of its proper divisors (496442716202).

925138865878 is a wasteful number, since it uses less digits than its factorization.

925138865878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12128811.

The product of its digits is 232243200, while the sum is 70.

The spelling of 925138865878 in words is "nine hundred twenty-five billion, one hundred thirty-eight million, eight hundred sixty-five thousand, eight hundred seventy-eight".