45981640499 has 2 divisors, whose sum is σ = 45981640500. Its totient is φ = 45981640498.

The previous prime is 45981640429. The next prime is 45981640531. The reversal of 45981640499 is 99404618954.

45981640499 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 not a de Polignac number, because 45981640499 - 2¹² = 45981636403 is a prime.

It is a super-2 number, since 2×45981640499² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (45981640429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22990820249 + 22990820250.

It is an arithmetic number, because the mean of its divisors is an integer number (22990820250).

Almost surely, 2^45981640499 is an apocalyptic number.

45981640499 is a deficient number, since it is larger than the sum of its proper divisors (1).

45981640499 is an equidigital number, since it uses as much as digits as its factorization.

45981640499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11197440, while the sum is 59.

The spelling of 45981640499 in words is "forty-five billion, nine hundred eighty-one million, six hundred forty thousand, four hundred ninety-nine".