70075736121 has 4 divisors (see below), whose sum is σ = 93434314832. Its totient is φ = 46717157412.

The previous prime is 70075736113. The next prime is 70075736131. The reversal of 70075736121 is 12163757007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 70075736121 - 2³ = 70075736113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 70075736121.

It is not an unprimeable number, because it can be changed into a prime (70075736131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11679289351 + ... + 11679289356.

It is an arithmetic number, because the mean of its divisors is an integer number (23358578708).

Almost surely, 2^70075736121 is an apocalyptic number.

It is an amenable number.

70075736121 is a deficient number, since it is larger than the sum of its proper divisors (23358578711).

70075736121 is a wasteful number, since it uses less digits than its factorization.

70075736121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23358578710.

The product of its (nonzero) digits is 61740, while the sum is 39.

The spelling of 70075736121 in words is "seventy billion, seventy-five million, seven hundred thirty-six thousand, one hundred twenty-one".