69879658055040 has 256 divisors, whose sum is σ = 250545898353600. Its totient is φ = 18634575108096.

The previous prime is 69879658055033. The next prime is 69879658055059. The reversal of 69879658055040 is 4055085697896.

69879658055040 is a `hidden beast` number, since 6 + 9 + 8 + 7 + 9 + 65 + 8 + 0 + 550 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 69879658055040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23563047 + ... + 26362406.

Almost surely, 2^{69879658055040} is an apocalyptic number.

69879658055040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69879658055040 is an abundant number, since it is smaller than the sum of its proper divisors (180666240298560).

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

69879658055040 is an frugal number, since it uses more digits than its factorization.

69879658055040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49925493 (or 49925463 counting only the distinct ones).

The product of its (nonzero) digits is 653184000, while the sum is 72.

The spelling of 69879658055040 in words is "sixty-nine trillion, eight hundred seventy-nine billion, six hundred fifty-eight million, fifty-five thousand, forty".