70518789121 has 8 divisors (see below), whose sum is σ = 77014044288. Its totient is φ = 64037610000.

The previous prime is 70518789113. The next prime is 70518789137. The reversal of 70518789121 is 12198781507.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70518789121 - 2³ = 70518789113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70518787121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3508530 + ... + 3528571.

It is an arithmetic number, because the mean of its divisors is an integer number (9626755536).

Almost surely, 2^70518789121 is an apocalyptic number.

It is an amenable number.

70518789121 is a deficient number, since it is larger than the sum of its proper divisors (6495255167).

70518789121 is a wasteful number, since it uses less digits than its factorization.

70518789121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7038023.

The product of its (nonzero) digits is 282240, while the sum is 49.

The spelling of 70518789121 in words is "seventy billion, five hundred eighteen million, seven hundred eighty-nine thousand, one hundred twenty-one".