40620360757 has 2 divisors, whose sum is σ = 40620360758. Its totient is φ = 40620360756.

The previous prime is 40620360749. The next prime is 40620360761. The reversal of 40620360757 is 75706302604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40111677841 + 508682916 = 200279^2 + 22554^2 .

It is a cyclic number.

It is not a de Polignac number, because 40620360757 - 2³ = 40620360749 is a prime.

It is a super-2 number, since 2×40620360757² (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 (40620360707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20310180378 + 20310180379.

It is an arithmetic number, because the mean of its divisors is an integer number (20310180379).

Almost surely, 2^40620360757 is an apocalyptic number.

It is an amenable number.

40620360757 is a deficient number, since it is larger than the sum of its proper divisors (1).

40620360757 is an equidigital number, since it uses as much as digits as its factorization.

40620360757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 40.

The spelling of 40620360757 in words is "forty billion, six hundred twenty million, three hundred sixty thousand, seven hundred fifty-seven".