70733116521 has 6 divisors (see below), whose sum is σ = 102170057210. Its totient is φ = 47155411008.

The previous prime is 70733116513. The next prime is 70733116549. The reversal of 70733116521 is 12561133707.

It can be written as a sum of positive squares in only one way, i.e., 57140121600 + 13592994921 = 239040^2 + 116589^2 .

It is not a de Polignac number, because 70733116521 - 2³ = 70733116513 is a prime.

It is a super-3 number, since 3×70733116521³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70733112521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3929617576 + ... + 3929617593.

Almost surely, 2^70733116521 is an apocalyptic number.

It is an amenable number.

70733116521 is a deficient number, since it is larger than the sum of its proper divisors (31436940689).

70733116521 is a wasteful number, since it uses less digits than its factorization.

70733116521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7859235175 (or 7859235172 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The spelling of 70733116521 in words is "seventy billion, seven hundred thirty-three million, one hundred sixteen thousand, five hundred twenty-one".