74955867739 has 2 divisors, whose sum is σ = 74955867740. Its totient is φ = 74955867738.

The previous prime is 74955867643. The next prime is 74955867743. The reversal of 74955867739 is 93776855947.

It is a strong prime.

It is an emirp because it is prime and its reverse (93776855947) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74955867739 is a prime.

It is not a weakly prime, because it can be changed into another prime (74955867769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37477933869 + 37477933870.

It is an arithmetic number, because the mean of its divisors is an integer number (37477933870).

Almost surely, 2^74955867739 is an apocalyptic number.

74955867739 is a deficient number, since it is larger than the sum of its proper divisors (1).

74955867739 is an equidigital number, since it uses as much as digits as its factorization.

74955867739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 400075200, while the sum is 70.

The spelling of 74955867739 in words is "seventy-four billion, nine hundred fifty-five million, eight hundred sixty-seven thousand, seven hundred thirty-nine".