45505993065819 has 32 divisors (see below), whose sum is σ = 71284257273600. Its totient is φ = 25457133125760.

The previous prime is 45505993065809. The next prime is 45505993065821. The reversal of 45505993065819 is 91856039950554.

It is a happy number.

It is not a de Polignac number, because 45505993065819 - 2⁸ = 45505993065563 is a prime.

It is a super-2 number, since 2×45505993065819² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45505993065809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12849712 + ... + 16003970.

It is an arithmetic number, because the mean of its divisors is an integer number (2227633039800).

Almost surely, 2^{45505993065819} is an apocalyptic number.

45505993065819 is a deficient number, since it is larger than the sum of its proper divisors (25778264207781).

45505993065819 is a wasteful number, since it uses less digits than its factorization.

45505993065819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3187915.

The product of its (nonzero) digits is 262440000, while the sum is 69.

The spelling of 45505993065819 in words is "forty-five trillion, five hundred five billion, nine hundred ninety-three million, sixty-five thousand, eight hundred nineteen".