70139370061 has 2 divisors, whose sum is σ = 70139370062. Its totient is φ = 70139370060.

The previous prime is 70139370053. The next prime is 70139370107. The reversal of 70139370061 is 16007393107.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55448475625 + 14690894436 = 235475^2 + 121206^2 .

It is a cyclic number.

It is not a de Polignac number, because 70139370061 - 2³ = 70139370053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70139370061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70139370011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35069685030 + 35069685031.

It is an arithmetic number, because the mean of its divisors is an integer number (35069685031).

Almost surely, 2^70139370061 is an apocalyptic number.

It is an amenable number.

70139370061 is a deficient number, since it is larger than the sum of its proper divisors (1).

70139370061 is an equidigital number, since it uses as much as digits as its factorization.

70139370061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23814, while the sum is 37.

The spelling of 70139370061 in words is "seventy billion, one hundred thirty-nine million, three hundred seventy thousand, sixty-one".