79775626140 has 192 divisors, whose sum is σ = 293427993600. Its totient is φ = 17605631232.

The previous prime is 79775626127. The next prime is 79775626141. The reversal of 79775626140 is 4162657797.

79775626140 is a `hidden beast` number, since 7 + 9 + 7 + 7 + 5 + 626 + 1 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79775626141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 254254 + ... + 473493.

It is an arithmetic number, because the mean of its divisors is an integer number (1528270800).

Almost surely, 2^79775626140 is an apocalyptic number.

79775626140 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

79775626140 is an abundant number, since it is smaller than the sum of its proper divisors (213652367460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79775626140 is a wasteful number, since it uses less digits than its factorization.

79775626140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727801 (or 727793 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 54.

The spelling of 79775626140 in words is "seventy-nine billion, seven hundred seventy-five million, six hundred twenty-six thousand, one hundred forty".