74777147940 has 48 divisors (see below), whose sum is σ = 228410199360. Its totient is φ = 18127793280.

The previous prime is 74777147923. The next prime is 74777147969. The reversal of 74777147940 is 4974177747.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56648695 + ... + 56650014.

It is an arithmetic number, because the mean of its divisors is an integer number (4758545820).

Almost surely, 2^74777147940 is an apocalyptic number.

It is an amenable number.

74777147940 is an abundant number, since it is smaller than the sum of its proper divisors (153633051420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74777147940 is a wasteful number, since it uses less digits than its factorization.

74777147940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113298732 (or 113298730 counting only the distinct ones).

The product of its (nonzero) digits is 9680832, while the sum is 57.

The spelling of 74777147940 in words is "seventy-four billion, seven hundred seventy-seven million, one hundred forty-seven thousand, nine hundred forty".