45191123620 has 24 divisors (see below), whose sum is σ = 94927102200. Its totient is φ = 18071546112.

The previous prime is 45191123563. The next prime is 45191123623. The reversal of 45191123620 is 2632119154.

It can be written as a sum of positive squares in 4 ways, for example, as 8345553316 + 36845570304 = 91354^2 + 191952^2 .

It is not an unprimeable number, because it can be changed into a prime (45191123623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230425 + ... + 378784.

It is an arithmetic number, because the mean of its divisors is an integer number (3955295925).

Almost surely, 2^45191123620 is an apocalyptic number.

It is an amenable number.

45191123620 is an abundant number, since it is smaller than the sum of its proper divisors (49735978580).

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

45191123620 is a wasteful number, since it uses less digits than its factorization.

45191123620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612927 (or 612925 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 45191123620 in words is "forty-five billion, one hundred ninety-one million, one hundred twenty-three thousand, six hundred twenty".