70740859621 has 2 divisors, whose sum is σ = 70740859622. Its totient is φ = 70740859620.

The previous prime is 70740859597. The next prime is 70740859643. The reversal of 70740859621 is 12695804707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60272705025 + 10468154596 = 245505^2 + 102314^2 .

It is a cyclic number.

It is not a de Polignac number, because 70740859621 - 2¹⁷ = 70740728549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70740859421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35370429810 + 35370429811.

It is an arithmetic number, because the mean of its divisors is an integer number (35370429811).

Almost surely, 2^70740859621 is an apocalyptic number.

It is an amenable number.

70740859621 is a deficient number, since it is larger than the sum of its proper divisors (1).

70740859621 is an equidigital number, since it uses as much as digits as its factorization.

70740859621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 70740859621 in words is "seventy billion, seven hundred forty million, eight hundred fifty-nine thousand, six hundred twenty-one".