74081777777 has 16 divisors (see below), whose sum is σ = 87777715200. Its totient is φ = 61181939520.

The previous prime is 74081777767. The next prime is 74081777831. The reversal of 74081777777 is 77777718047.

It is a cyclic number.

It is not a de Polignac number, because 74081777777 - 2⁶ = 74081777713 is a prime.

It is a super-2 number, since 2×74081777777² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

74081777777 is a modest number, since divided by 777777 gives 74081 as remainder.

It is not an unprimeable number, because it can be changed into a prime (74081777767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695702 + ... + 795087.

It is an arithmetic number, because the mean of its divisors is an integer number (5486107200).

Almost surely, 2^74081777777 is an apocalyptic number.

It is an amenable number.

74081777777 is a deficient number, since it is larger than the sum of its proper divisors (13695937423).

74081777777 is a wasteful number, since it uses less digits than its factorization.

74081777777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491056.

The product of its (nonzero) digits is 26353376, while the sum is 62.

The spelling of 74081777777 in words is "seventy-four billion, eighty-one million, seven hundred seventy-seven thousand, seven hundred seventy-seven".