40407980761 has 2 divisors, whose sum is σ = 40407980762. Its totient is φ = 40407980760.

The previous prime is 40407980749. The next prime is 40407980773. The reversal of 40407980761 is 16708970404.

It is a balanced prime because it is at equal distance from previous prime (40407980749) and next prime (40407980773).

It can be written as a sum of positive squares in only one way, i.e., 37690339600 + 2717641161 = 194140^2 + 52131^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40407980761 is a prime.

It is a super-2 number, since 2×40407980761² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40407986761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20203990380 + 20203990381.

It is an arithmetic number, because the mean of its divisors is an integer number (20203990381).

Almost surely, 2^40407980761 is an apocalyptic number.

It is an amenable number.

40407980761 is a deficient number, since it is larger than the sum of its proper divisors (1).

40407980761 is an equidigital number, since it uses as much as digits as its factorization.

40407980761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 40407980761 in words is "forty billion, four hundred seven million, nine hundred eighty thousand, seven hundred sixty-one".