40775521597 has 32 divisors (see below), whose sum is σ = 43090306560. Its totient is φ = 38548224000.

The previous prime is 40775521559. The next prime is 40775521607. The reversal of 40775521597 is 79512557704.

It is a cyclic number.

It is not a de Polignac number, because 40775521597 - 2¹⁵ = 40775488829 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 (40775528597) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78263697 + ... + 78264217.

It is an arithmetic number, because the mean of its divisors is an integer number (1346572080).

Almost surely, 2^40775521597 is an apocalyptic number.

It is an amenable number.

40775521597 is a deficient number, since it is larger than the sum of its proper divisors (2314784963).

40775521597 is a wasteful number, since it uses less digits than its factorization.

40775521597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045.

The product of its (nonzero) digits is 3087000, while the sum is 52.

The spelling of 40775521597 in words is "forty billion, seven hundred seventy-five million, five hundred twenty-one thousand, five hundred ninety-seven".