70400734037537 has 2 divisors, whose sum is σ = 70400734037538. Its totient is φ = 70400734037536.

The previous prime is 70400734037509. The next prime is 70400734037551. The reversal of 70400734037537 is 73573043700407.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69255750576016 + 1144983461521 = 8322004^2 + 1070039^2 .

It is an emirp because it is prime and its reverse (73573043700407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70400734037537 - 2⁴⁴ = 52808547993121 is a prime.

It is a super-3 number, since 3×70400734037537³ (a number of 43 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (70400734037507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35200367018768 + 35200367018769.

It is an arithmetic number, because the mean of its divisors is an integer number (35200367018769).

Almost surely, 2^{70400734037537} is an apocalyptic number.

It is an amenable number.

70400734037537 is a deficient number, since it is larger than the sum of its proper divisors (1).

70400734037537 is an equidigital number, since it uses as much as digits as its factorization.

70400734037537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5186160, while the sum is 50.

The spelling of 70400734037537 in words is "seventy trillion, four hundred billion, seven hundred thirty-four million, thirty-seven thousand, five hundred thirty-seven".