45397191400 has 144 divisors (see below), whose sum is σ = 116937515520. Its totient is φ = 16376976000.

The previous prime is 45397191373. The next prime is 45397191401. The reversal of 45397191400 is 419179354.

It is not an unprimeable number, because it can be changed into a prime (45397191401) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3066015 + ... + 3080785.

It is an arithmetic number, because the mean of its divisors is an integer number (812066080).

Almost surely, 2^45397191400 is an apocalyptic number.

45397191400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45397191400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58468757760).

45397191400 is an abundant number, since it is smaller than the sum of its proper divisors (71540324120).

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

45397191400 is a wasteful number, since it uses less digits than its factorization.

45397191400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14936 (or 14916 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The spelling of 45397191400 in words is "forty-five billion, three hundred ninety-seven million, one hundred ninety-one thousand, four hundred".