70977423445 has 4 divisors (see below), whose sum is σ = 85172908140. Its totient is φ = 56781938752.

The previous prime is 70977423437. The next prime is 70977423463. The reversal of 70977423445 is 54432477907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54432477907 = 12161 ⋅4475987.

It can be written as a sum of positive squares in 2 ways, for example, as 49103900836 + 21873522609 = 221594^2 + 147897^2 .

It is a cyclic number.

It is not a de Polignac number, because 70977423445 - 2³ = 70977423437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70977423392 and 70977423401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7097742340 + ... + 7097742349.

It is an arithmetic number, because the mean of its divisors is an integer number (21293227035).

Almost surely, 2^70977423445 is an apocalyptic number.

It is an amenable number.

70977423445 is a deficient number, since it is larger than the sum of its proper divisors (14195484695).

70977423445 is a wasteful number, since it uses less digits than its factorization.

70977423445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14195484694.

The product of its (nonzero) digits is 5927040, while the sum is 52.

The spelling of 70977423445 in words is "seventy billion, nine hundred seventy-seven million, four hundred twenty-three thousand, four hundred forty-five".