45444251454 has 32 divisors (see below), whose sum is σ = 109982727936. Its totient is φ = 12220302720.

The previous prime is 45444251443. The next prime is 45444251459. The reversal of 45444251454 is 45415244454.

It is a happy number.

It is a super-2 number, since 2×45444251454² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45444251459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31822992 + ... + 31824419.

It is an arithmetic number, because the mean of its divisors is an integer number (3436960248).

Almost surely, 2^45444251454 is an apocalyptic number.

45444251454 is an abundant number, since it is smaller than the sum of its proper divisors (64538476482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45444251454 is a wasteful number, since it uses less digits than its factorization.

45444251454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63647440.

The product of its digits is 1024000, while the sum is 42.

The spelling of 45444251454 in words is "forty-five billion, four hundred forty-four million, two hundred fifty-one thousand, four hundred fifty-four".