45511378999 has 2 divisors, whose sum is σ = 45511379000. Its totient is φ = 45511378998.

The previous prime is 45511378993. The next prime is 45511379021. The reversal of 45511378999 is 99987311554.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45511378999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45511378993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22755689499 + 22755689500.

It is an arithmetic number, because the mean of its divisors is an integer number (22755689500).

Almost surely, 2^45511378999 is an apocalyptic number.

45511378999 is a deficient number, since it is larger than the sum of its proper divisors (1).

45511378999 is an equidigital number, since it uses as much as digits as its factorization.

45511378999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12247200, while the sum is 61.

The spelling of 45511378999 in words is "forty-five billion, five hundred eleven million, three hundred seventy-eight thousand, nine hundred ninety-nine".