74001007777 has 4 divisors (see below), whose sum is σ = 77895797680. Its totient is φ = 70106217876.

The previous prime is 74001007757. The next prime is 74001007793. The reversal of 74001007777 is 77770010047.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74001007777 is a prime.

It is a super-2 number, since 2×74001007777² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74001007757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1947394923 + ... + 1947394960.

It is an arithmetic number, because the mean of its divisors is an integer number (19473949420).

Almost surely, 2^74001007777 is an apocalyptic number.

It is an amenable number.

74001007777 is a deficient number, since it is larger than the sum of its proper divisors (3894789903).

74001007777 is a wasteful number, since it uses less digits than its factorization.

74001007777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3894789902.

The product of its (nonzero) digits is 67228, while the sum is 40.

The spelling of 74001007777 in words is "seventy-four billion, one million, seven thousand, seven hundred seventy-seven".