74860077997 has 2 divisors, whose sum is σ = 74860077998. Its totient is φ = 74860077996.

The previous prime is 74860077911. The next prime is 74860078003. The reversal of 74860077997 is 79977006847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72280860201 + 2579217796 = 268851^2 + 50786^2 .

It is an emirp because it is prime and its reverse (79977006847) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74860077997 - 2⁷ = 74860077869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74860077907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37430038998 + 37430038999.

It is an arithmetic number, because the mean of its divisors is an integer number (37430038999).

Almost surely, 2^74860077997 is an apocalyptic number.

It is an amenable number.

74860077997 is a deficient number, since it is larger than the sum of its proper divisors (1).

74860077997 is an equidigital number, since it uses as much as digits as its factorization.

74860077997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37340352, while the sum is 64.

The spelling of 74860077997 in words is "seventy-four billion, eight hundred sixty million, seventy-seven thousand, nine hundred ninety-seven".