45342312640 has 28 divisors (see below), whose sum is σ = 107971382736. Its totient is φ = 18136924928.

The previous prime is 45342312619. The next prime is 45342312703. The reversal of 45342312640 is 4621324354.

It is a junction number, because it is equal to n+sod(n) for n = 45342312596 and 45342312605.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70847044 + ... + 70847683.

It is an arithmetic number, because the mean of its divisors is an integer number (3856120812).

Almost surely, 2^45342312640 is an apocalyptic number.

45342312640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45342312640 is an abundant number, since it is smaller than the sum of its proper divisors (62629070096).

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

45342312640 is a wasteful number, since it uses less digits than its factorization.

45342312640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141694744 (or 141694734 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 45342312640 its reverse (4621324354), we get a palindrome (49963636994).

The spelling of 45342312640 in words is "forty-five billion, three hundred forty-two million, three hundred twelve thousand, six hundred forty".