40902261401 has 2 divisors, whose sum is σ = 40902261402. Its totient is φ = 40902261400.

The previous prime is 40902261349. The next prime is 40902261431. The reversal of 40902261401 is 10416220904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32387401225 + 8514860176 = 179965^2 + 92276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40902261401 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40902261431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20451130700 + 20451130701.

It is an arithmetic number, because the mean of its divisors is an integer number (20451130701).

Almost surely, 2^40902261401 is an apocalyptic number.

It is an amenable number.

40902261401 is a deficient number, since it is larger than the sum of its proper divisors (1).

40902261401 is an equidigital number, since it uses as much as digits as its factorization.

40902261401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 40902261401 in words is "forty billion, nine hundred two million, two hundred sixty-one thousand, four hundred one".