40455351983 has 2 divisors, whose sum is σ = 40455351984. Its totient is φ = 40455351982.

The previous prime is 40455351961. The next prime is 40455352057. The reversal of 40455351983 is 38915355404.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40455351983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40455351283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20227675991 + 20227675992.

It is an arithmetic number, because the mean of its divisors is an integer number (20227675992).

Almost surely, 2^40455351983 is an apocalyptic number.

40455351983 is a deficient number, since it is larger than the sum of its proper divisors (1).

40455351983 is an equidigital number, since it uses as much as digits as its factorization.

40455351983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 40455351983 in words is "forty billion, four hundred fifty-five million, three hundred fifty-one thousand, nine hundred eighty-three".