40737425923 has 2 divisors, whose sum is σ = 40737425924. Its totient is φ = 40737425922.

The previous prime is 40737425849. The next prime is 40737425999. The reversal of 40737425923 is 32952473704.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40737425923 - 2⁹ = 40737425411 is a prime.

It is not a weakly prime, because it can be changed into another prime (40737425723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20368712961 + 20368712962.

It is an arithmetic number, because the mean of its divisors is an integer number (20368712962).

Almost surely, 2^40737425923 is an apocalyptic number.

40737425923 is a deficient number, since it is larger than the sum of its proper divisors (1).

40737425923 is an equidigital number, since it uses as much as digits as its factorization.

40737425923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 46.

The spelling of 40737425923 in words is "forty billion, seven hundred thirty-seven million, four hundred twenty-five thousand, nine hundred twenty-three".