70894928479 has 4 divisors (see below), whose sum is σ = 70921315584. Its totient is φ = 70868541376.

The previous prime is 70894928473. The next prime is 70894928501. The reversal of 70894928479 is 97482949807.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97482949807 = 173 ⋅563485259.

It is a cyclic number.

It is not a de Polignac number, because 70894928479 - 2¹³ = 70894920287 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 (70894928473) 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, 13189522 + ... + 13194895.

It is an arithmetic number, because the mean of its divisors is an integer number (17730328896).

Almost surely, 2^70894928479 is an apocalyptic number.

70894928479 is a deficient number, since it is larger than the sum of its proper divisors (26387105).

70894928479 is a wasteful number, since it uses less digits than its factorization.

70894928479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26387104.

The product of its (nonzero) digits is 73156608, while the sum is 67.

The spelling of 70894928479 in words is "seventy billion, eight hundred ninety-four million, nine hundred twenty-eight thousand, four hundred seventy-nine".