70923733129 has 4 divisors (see below), whose sum is σ = 73211595520. Its totient is φ = 68635870740.

The previous prime is 70923733093. The next prime is 70923733213. The reversal of 70923733129 is 92133732907.

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, and also an emirpimes, since its reverse is a distinct semiprime: 92133732907 = 53 ⋅1738372319.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70923733129 is a prime.

It is a super-2 number, since 2×70923733129² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70923739129) 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, 1143931149 + ... + 1143931210.

It is an arithmetic number, because the mean of its divisors is an integer number (18302898880).

Almost surely, 2^70923733129 is an apocalyptic number.

It is an amenable number.

70923733129 is a deficient number, since it is larger than the sum of its proper divisors (2287862391).

70923733129 is a wasteful number, since it uses less digits than its factorization.

70923733129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2287862390.

The product of its (nonzero) digits is 428652, while the sum is 46.

The spelling of 70923733129 in words is "seventy billion, nine hundred twenty-three million, seven hundred thirty-three thousand, one hundred twenty-nine".