40537451272117 has 4 divisors (see below), whose sum is σ = 41142487858336. Its totient is φ = 39932414685900.

The previous prime is 40537451272099. The next prime is 40537451272133. The reversal of 40537451272117 is 71127215473504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40537451272117 - 2¹⁵ = 40537451239349 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 (40537451272147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302518293009 + ... + 302518293142.

It is an arithmetic number, because the mean of its divisors is an integer number (10285621964584).

Almost surely, 2^{40537451272117} is an apocalyptic number.

It is an amenable number.

40537451272117 is a deficient number, since it is larger than the sum of its proper divisors (605036586219).

40537451272117 is an equidigital number, since it uses as much as digits as its factorization.

40537451272117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605036586218.

The product of its (nonzero) digits is 1646400, while the sum is 49.

The spelling of 40537451272117 in words is "forty trillion, five hundred thirty-seven billion, four hundred fifty-one million, two hundred seventy-two thousand, one hundred seventeen".