70516431461 has 4 divisors (see below), whose sum is σ = 80590207392. Its totient is φ = 60442655532.

The previous prime is 70516431431. The next prime is 70516431487. The reversal of 70516431461 is 16413461507.

It is a happy number.

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: 16413461507 = 331 ⋅49587497.

It is not a de Polignac number, because 70516431461 - 2¹⁰ = 70516430437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70516431421) 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, 5036887955 + ... + 5036887968.

It is an arithmetic number, because the mean of its divisors is an integer number (20147551848).

Almost surely, 2^70516431461 is an apocalyptic number.

It is an amenable number.

70516431461 is a deficient number, since it is larger than the sum of its proper divisors (10073775931).

70516431461 is a wasteful number, since it uses less digits than its factorization.

70516431461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10073775930.

The product of its (nonzero) digits is 60480, while the sum is 38.

Adding to 70516431461 its reverse (16413461507), we get a palindrome (86929892968).

The spelling of 70516431461 in words is "seventy billion, five hundred sixteen million, four hundred thirty-one thousand, four hundred sixty-one".