70037007407021 has 2 divisors, whose sum is σ = 70037007407022. Its totient is φ = 70037007407020.

The previous prime is 70037007407011. The next prime is 70037007407047. The reversal of 70037007407021 is 12070470073007.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57047975166121 + 12989032240900 = 7553011^2 + 3604030^2 .

It is a cyclic number.

It is not a de Polignac number, because 70037007407021 - 2⁶ = 70037007406957 is a prime.

It is a super-2 number, since 2×70037007407021² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70037007407011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35018503703510 + 35018503703511.

It is an arithmetic number, because the mean of its divisors is an integer number (35018503703511).

Almost surely, 2^{70037007407021} is an apocalyptic number.

It is an amenable number.

70037007407021 is a deficient number, since it is larger than the sum of its proper divisors (1).

70037007407021 is an equidigital number, since it uses as much as digits as its factorization.

70037007407021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57624, while the sum is 38.

The spelling of 70037007407021 in words is "seventy trillion, thirty-seven billion, seven million, four hundred seven thousand, twenty-one".