40407177545 has 16 divisors (see below), whose sum is σ = 58332167040. Its totient is φ = 26249474304.

The previous prime is 40407177409. The next prime is 40407177563. The reversal of 40407177545 is 54577170404.

It is a cyclic number.

It is not a de Polignac number, because 40407177545 - 2²⁸ = 40138742089 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40407177496 and 40407177505.

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, 30380672 + ... + 30382001.

It is an arithmetic number, because the mean of its divisors is an integer number (3645760440).

Almost surely, 2^40407177545 is an apocalyptic number.

It is an amenable number.

40407177545 is a deficient number, since it is larger than the sum of its proper divisors (17924989495).

40407177545 is a wasteful number, since it uses less digits than its factorization.

40407177545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60762704.

The product of its (nonzero) digits is 548800, while the sum is 44.

The spelling of 40407177545 in words is "forty billion, four hundred seven million, one hundred seventy-seven thousand, five hundred forty-five".