45403570644 has 48 divisors (see below), whose sum is σ = 106264545408. Its totient is φ = 15088465408.

The previous prime is 45403570637. The next prime is 45403570649. The reversal of 45403570644 is 44607530454.

It is a happy number.

It is a super-2 number, since 2×45403570644² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45403570596 and 45403570605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45403570649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6618064 + ... + 6624920.

It is an arithmetic number, because the mean of its divisors is an integer number (2213844696).

Almost surely, 2^45403570644 is an apocalyptic number.

It is an amenable number.

45403570644 is an abundant number, since it is smaller than the sum of its proper divisors (60860974764).

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

45403570644 is a wasteful number, since it uses less digits than its factorization.

45403570644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8464 (or 8462 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 42.

The spelling of 45403570644 in words is "forty-five billion, four hundred three million, five hundred seventy thousand, six hundred forty-four".