70668738045 has 24 divisors (see below), whose sum is σ = 122699089656. Its totient is φ = 37626421248.

The previous prime is 70668738043. The next prime is 70668738071. The reversal of 70668738045 is 54083786607.

It can be written as a sum of positive squares in 4 ways, for example, as 7441132644 + 63227605401 = 86262^2 + 251451^2 .

It is not a de Polignac number, because 70668738045 - 2¹ = 70668738043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70668737982 and 70668738000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70668738043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1297444 + ... + 1350813.

It is an arithmetic number, because the mean of its divisors is an integer number (5112462069).

Almost surely, 2^70668738045 is an apocalyptic number.

It is an amenable number.

70668738045 is a deficient number, since it is larger than the sum of its proper divisors (52030351611).

70668738045 is a wasteful number, since it uses less digits than its factorization.

70668738045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648861 (or 2648858 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 70668738045 in words is "seventy billion, six hundred sixty-eight million, seven hundred thirty-eight thousand, forty-five".