40077061504 has 32 divisors (see below), whose sum is σ = 80851687200. Its totient is φ = 19784873472.

The previous prime is 40077061487. The next prime is 40077061537. The reversal of 40077061504 is 40516077004.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 40077061504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1971547 + ... + 1991770.

It is an arithmetic number, because the mean of its divisors is an integer number (2526615225).

Almost surely, 2^40077061504 is an apocalyptic number.

It is an amenable number.

40077061504 is an abundant number, since it is smaller than the sum of its proper divisors (40774625696).

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

40077061504 is an equidigital number, since it uses as much as digits as its factorization.

40077061504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3963410 (or 3963398 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The spelling of 40077061504 in words is "forty billion, seventy-seven million, sixty-one thousand, five hundred four".