70746890531 has 4 divisors (see below), whose sum is σ = 70748769000. Its totient is φ = 70745012064.

The previous prime is 70746890527. The next prime is 70746890567. The reversal of 70746890531 is 13509864707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13509864707 = 193 ⋅69999299.

It is a cyclic number.

It is not a de Polignac number, because 70746890531 - 2² = 70746890527 is a prime.

It is a super-2 number, since 2×70746890531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70746890531.

It is not an unprimeable number, because it can be changed into a prime (70746890131) 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, 881561 + ... + 958458.

It is an arithmetic number, because the mean of its divisors is an integer number (17687192250).

Almost surely, 2^70746890531 is an apocalyptic number.

70746890531 is a deficient number, since it is larger than the sum of its proper divisors (1878469).

70746890531 is a wasteful number, since it uses less digits than its factorization.

70746890531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878468.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The spelling of 70746890531 in words is "seventy billion, seven hundred forty-six million, eight hundred ninety thousand, five hundred thirty-one".