40372501373 has 2 divisors, whose sum is σ = 40372501374. Its totient is φ = 40372501372.

The previous prime is 40372501331. The next prime is 40372501439. The reversal of 40372501373 is 37310527304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37497611449 + 2874889924 = 193643^2 + 53618^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40372501373 is a prime.

It is a super-2 number, since 2×40372501373² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40372501073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20186250686 + 20186250687.

It is an arithmetic number, because the mean of its divisors is an integer number (20186250687).

Almost surely, 2^40372501373 is an apocalyptic number.

It is an amenable number.

40372501373 is a deficient number, since it is larger than the sum of its proper divisors (1).

40372501373 is an equidigital number, since it uses as much as digits as its factorization.

40372501373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 35.

The spelling of 40372501373 in words is "forty billion, three hundred seventy-two million, five hundred one thousand, three hundred seventy-three".