70121152798128 has 80 divisors (see below), whose sum is σ = 201276367388800. Its totient is φ = 23373405437760.

The previous prime is 70121152798063. The next prime is 70121152798129. The reversal of 70121152798128 is 82189725112107.

70121152798128 is a `hidden beast` number, since 7 + 0 + 1 + 2 + 1 + 1 + 527 + 98 + 1 + 28 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (70121152798129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32503623 + ... + 34593753.

It is an arithmetic number, because the mean of its divisors is an integer number (2515954592360).

Almost surely, 2^{70121152798128} is an apocalyptic number.

It is an amenable number.

70121152798128 is an abundant number, since it is smaller than the sum of its proper divisors (131155214590672).

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

70121152798128 is a wasteful number, since it uses less digits than its factorization.

70121152798128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167807 (or 2167795 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 54.

The spelling of 70121152798128 in words is "seventy trillion, one hundred twenty-one billion, one hundred fifty-two million, seven hundred ninety-eight thousand, one hundred twenty-eight".