69731133230640 has 80 divisors (see below), whose sum is σ = 247047443451648. Its totient is φ = 15938544738048.

The previous prime is 69731133230597. The next prime is 69731133230713. The reversal of 69731133230640 is 4603233113796.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 69731133230640.

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, 20753311782 + ... + 20753315141.

Almost surely, 2^{69731133230640} is an apocalyptic number.

69731133230640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69731133230640 is an abundant number, since it is smaller than the sum of its proper divisors (177316310221008).

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

69731133230640 is a wasteful number, since it uses less digits than its factorization.

69731133230640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41506626946 (or 41506626940 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 48.

The spelling of 69731133230640 in words is "sixty-nine trillion, seven hundred thirty-one billion, one hundred thirty-three million, two hundred thirty thousand, six hundred forty".