70938516461 has 4 divisors (see below), whose sum is σ = 70951954524. Its totient is φ = 70925078400.

The previous prime is 70938516457. The next prime is 70938516469. The reversal of 70938516461 is 16461583907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16461583907 = 19 ⋅866399153.

It can be written as a sum of positive squares in 2 ways, for example, as 3231354025 + 67707162436 = 56845^2 + 260206^2 .

It is a cyclic number.

It is not a de Polignac number, because 70938516461 - 2² = 70938516457 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70938516469) 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, 6711110 + ... + 6721671.

It is an arithmetic number, because the mean of its divisors is an integer number (17737988631).

Almost surely, 2^70938516461 is an apocalyptic number.

It is an amenable number.

70938516461 is a deficient number, since it is larger than the sum of its proper divisors (13438063).

70938516461 is a wasteful number, since it uses less digits than its factorization.

70938516461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13438062.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 70938516461 in words is "seventy billion, nine hundred thirty-eight million, five hundred sixteen thousand, four hundred sixty-one".