40371975477 has 8 divisors (see below), whose sum is σ = 59810334080. Its totient is φ = 26914650300.

The previous prime is 40371975439. The next prime is 40371975499. The reversal of 40371975477 is 77457917304.

40371975477 is a `hidden beast` number, since 4 + 0 + 3 + 7 + 1 + 97 + 547 + 7 = 666.

It is not a de Polignac number, because 40371975477 - 2¹⁴ = 40371959093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40371975277) 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, 747629149 + ... + 747629202.

It is an arithmetic number, because the mean of its divisors is an integer number (7476291760).

Almost surely, 2^40371975477 is an apocalyptic number.

It is an amenable number.

40371975477 is a deficient number, since it is larger than the sum of its proper divisors (19438358603).

40371975477 is a wasteful number, since it uses less digits than its factorization.

40371975477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495258360 (or 1495258354 counting only the distinct ones).

The product of its (nonzero) digits is 5186160, while the sum is 54.

The spelling of 40371975477 in words is "forty billion, three hundred seventy-one million, nine hundred seventy-five thousand, four hundred seventy-seven".