70400733337021 has 2 divisors, whose sum is σ = 70400733337022. Its totient is φ = 70400733337020.

The previous prime is 70400733337009. The next prime is 70400733337079. The reversal of 70400733337021 is 12073333700407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41806698956100 + 28594034380921 = 6465810^2 + 5347339^2 .

It is a cyclic number.

It is not a de Polignac number, because 70400733337021 - 2⁷ = 70400733336893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70400733337091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35200366668510 + 35200366668511.

It is an arithmetic number, because the mean of its divisors is an integer number (35200366668511).

Almost surely, 2^{70400733337021} is an apocalyptic number.

It is an amenable number.

70400733337021 is a deficient number, since it is larger than the sum of its proper divisors (1).

70400733337021 is an equidigital number, since it uses as much as digits as its factorization.

70400733337021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 222264, while the sum is 40.

The spelling of 70400733337021 in words is "seventy trillion, four hundred billion, seven hundred thirty-three million, three hundred thirty-seven thousand, twenty-one".