70315724737 has 2 divisors, whose sum is σ = 70315724738. Its totient is φ = 70315724736.

The previous prime is 70315724693. The next prime is 70315724771. The reversal of 70315724737 is 73742751307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35465928976 + 34849795761 = 188324^2 + 186681^2 .

It is an emirp because it is prime and its reverse (73742751307) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70315724737 - 2¹⁵ = 70315691969 is a prime.

It is a super-2 number, since 2×70315724737² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70315721737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35157862368 + 35157862369.

It is an arithmetic number, because the mean of its divisors is an integer number (35157862369).

Almost surely, 2^70315724737 is an apocalyptic number.

It is an amenable number.

70315724737 is a deficient number, since it is larger than the sum of its proper divisors (1).

70315724737 is an equidigital number, since it uses as much as digits as its factorization.

70315724737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864360, while the sum is 46.

The spelling of 70315724737 in words is "seventy billion, three hundred fifteen million, seven hundred twenty-four thousand, seven hundred thirty-seven".