40745478477 has 8 divisors (see below), whose sum is σ = 59266150560. Its totient is φ = 24694229360.

The previous prime is 40745478469. The next prime is 40745478493. The reversal of 40745478477 is 77487454704.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40745478477 - 2³ = 40745478469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40745478377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617355702 + ... + 617355767.

It is an arithmetic number, because the mean of its divisors is an integer number (7408268820).

Almost surely, 2^40745478477 is an apocalyptic number.

It is an amenable number.

40745478477 is a deficient number, since it is larger than the sum of its proper divisors (18520672083).

40745478477 is a wasteful number, since it uses less digits than its factorization.

40745478477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234711483.

The product of its (nonzero) digits is 24586240, while the sum is 57.

The spelling of 40745478477 in words is "forty billion, seven hundred forty-five million, four hundred seventy-eight thousand, four hundred seventy-seven".