74977186741 has 2 divisors, whose sum is σ = 74977186742. Its totient is φ = 74977186740.

The previous prime is 74977186703. The next prime is 74977186853. The reversal of 74977186741 is 14768177947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60145600516 + 14831586225 = 245246^2 + 121785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74977186741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74977186741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74977184741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37488593370 + 37488593371.

It is an arithmetic number, because the mean of its divisors is an integer number (37488593371).

Almost surely, 2^74977186741 is an apocalyptic number.

It is an amenable number.

74977186741 is a deficient number, since it is larger than the sum of its proper divisors (1).

74977186741 is an equidigital number, since it uses as much as digits as its factorization.

74977186741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16595712, while the sum is 61.

The spelling of 74977186741 in words is "seventy-four billion, nine hundred seventy-seven million, one hundred eighty-six thousand, seven hundred forty-one".