45938449979 has 2 divisors, whose sum is σ = 45938449980. Its totient is φ = 45938449978.

The previous prime is 45938449943. The next prime is 45938450003. The reversal of 45938449979 is 97994483954.

45938449979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45938449979 is a prime.

It is a super-2 number, since 2×45938449979² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45938449279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22969224989 + 22969224990.

It is an arithmetic number, because the mean of its divisors is an integer number (22969224990).

Almost surely, 2^45938449979 is an apocalyptic number.

45938449979 is a deficient number, since it is larger than the sum of its proper divisors (1).

45938449979 is an equidigital number, since it uses as much as digits as its factorization.

45938449979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352719360, while the sum is 71.

The spelling of 45938449979 in words is "forty-five billion, nine hundred thirty-eight million, four hundred forty-nine thousand, nine hundred seventy-nine".