74087979773 has 2 divisors, whose sum is σ = 74087979774. Its totient is φ = 74087979772.

The previous prime is 74087979751. The next prime is 74087979839. The reversal of 74087979773 is 37797978047.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40818949369 + 33269030404 = 202037^2 + 182398^2 .

It is an emirp because it is prime and its reverse (37797978047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74087979773 - 2³⁰ = 73014237949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74087979703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37043989886 + 37043989887.

It is an arithmetic number, because the mean of its divisors is an integer number (37043989887).

Almost surely, 2^74087979773 is an apocalyptic number.

It is an amenable number.

74087979773 is a deficient number, since it is larger than the sum of its proper divisors (1).

74087979773 is an equidigital number, since it uses as much as digits as its factorization.

74087979773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 130691232, while the sum is 68.

The spelling of 74087979773 in words is "seventy-four billion, eighty-seven million, nine hundred seventy-nine thousand, seven hundred seventy-three".