40377645187 has 6 divisors (see below), whose sum is σ = 44382039884. Its totient is φ = 36706950060.

The previous prime is 40377645181. The next prime is 40377645229. The reversal of 40377645187 is 78154677304.

40377645187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40377645187 - 2⁷ = 40377645059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40377645181) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166849653 + ... + 166849894.

Almost surely, 2^40377645187 is an apocalyptic number.

40377645187 is a deficient number, since it is larger than the sum of its proper divisors (4004394697).

40377645187 is a wasteful number, since it uses less digits than its factorization.

40377645187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333699569 (or 333699558 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 52.

The spelling of 40377645187 in words is "forty billion, three hundred seventy-seven million, six hundred forty-five thousand, one hundred eighty-seven".