74144692921051 has 2 divisors, whose sum is σ = 74144692921052. Its totient is φ = 74144692921050.

The previous prime is 74144692921043. The next prime is 74144692921069. The reversal of 74144692921051 is 15012929644147.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74144692921051 - 2³ = 74144692921043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74144692920983 and 74144692921001.

It is not a weakly prime, because it can be changed into another prime (74144692921451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37072346460525 + 37072346460526.

It is an arithmetic number, because the mean of its divisors is an integer number (37072346460526).

Almost surely, 2^{74144692921051} is an apocalyptic number.

74144692921051 is a deficient number, since it is larger than the sum of its proper divisors (1).

74144692921051 is an equidigital number, since it uses as much as digits as its factorization.

74144692921051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 74144692921051 in words is "seventy-four trillion, one hundred forty-four billion, six hundred ninety-two million, nine hundred twenty-one thousand, fifty-one".