70071894291 has 32 divisors (see below), whose sum is σ = 111489241600. Its totient is φ = 39109869792.

The previous prime is 70071894283. The next prime is 70071894301. The reversal of 70071894291 is 19249817007.

It is not a de Polignac number, because 70071894291 - 2³ = 70071894283 is a prime.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

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 70071894291.

It is not an unprimeable number, because it can be changed into a prime (70071894271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 747580 + ... + 836073.

It is an arithmetic number, because the mean of its divisors is an integer number (3484038800).

Almost surely, 2^70071894291 is an apocalyptic number.

70071894291 is a deficient number, since it is larger than the sum of its proper divisors (41417347309).

70071894291 is a wasteful number, since it uses less digits than its factorization.

70071894291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583720 (or 1583706 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 48.

The spelling of 70071894291 in words is "seventy billion, seventy-one million, eight hundred ninety-four thousand, two hundred ninety-one".