74889097989731 has 2 divisors, whose sum is σ = 74889097989732. Its totient is φ = 74889097989730.

The previous prime is 74889097989661. The next prime is 74889097989799. The reversal of 74889097989731 is 13798979098847.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74889097989731 - 2⁴⁶ = 4520353812067 is a prime.

It is a super-2 number, since 2×74889097989731² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74889097989131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37444548994865 + 37444548994866.

It is an arithmetic number, because the mean of its divisors is an integer number (37444548994866).

Almost surely, 2^{74889097989731} is an apocalyptic number.

74889097989731 is a deficient number, since it is larger than the sum of its proper divisors (1).

74889097989731 is an equidigital number, since it uses as much as digits as its factorization.

74889097989731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13826598912, while the sum is 89.

The spelling of 74889097989731 in words is "seventy-four trillion, eight hundred eighty-nine billion, ninety-seven million, nine hundred eighty-nine thousand, seven hundred thirty-one".