40630625149 has 2 divisors, whose sum is σ = 40630625150. Its totient is φ = 40630625148.

The previous prime is 40630625093. The next prime is 40630625153. The reversal of 40630625149 is 94152603604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37464312249 + 3166312900 = 193557^2 + 56270^2 .

It is a cyclic number.

It is not a de Polignac number, because 40630625149 - 2⁹ = 40630624637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40630625179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20315312574 + 20315312575.

It is an arithmetic number, because the mean of its divisors is an integer number (20315312575).

Almost surely, 2^40630625149 is an apocalyptic number.

It is an amenable number.

40630625149 is a deficient number, since it is larger than the sum of its proper divisors (1).

40630625149 is an equidigital number, since it uses as much as digits as its factorization.

40630625149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 40630625149 in words is "forty billion, six hundred thirty million, six hundred twenty-five thousand, one hundred forty-nine".