74115019157 has 2 divisors, whose sum is σ = 74115019158. Its totient is φ = 74115019156.

The previous prime is 74115019067. The next prime is 74115019169. The reversal of 74115019157 is 75191051147.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38840920561 + 35274098596 = 197081^2 + 187814^2 .

It is a cyclic number.

It is not a de Polignac number, because 74115019157 - 2³⁰ = 73041277333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74115019057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37057509578 + 37057509579.

It is an arithmetic number, because the mean of its divisors is an integer number (37057509579).

Almost surely, 2^74115019157 is an apocalyptic number.

It is an amenable number.

74115019157 is a deficient number, since it is larger than the sum of its proper divisors (1).

74115019157 is an equidigital number, since it uses as much as digits as its factorization.

74115019157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44100, while the sum is 41.

The spelling of 74115019157 in words is "seventy-four billion, one hundred fifteen million, nineteen thousand, one hundred fifty-seven".