45237391557 has 8 divisors (see below), whose sum is σ = 60319937184. Its totient is φ = 30156553488.

The previous prime is 45237391543. The next prime is 45237391601. The reversal of 45237391557 is 75519373254.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45237391557 - 2⁷ = 45237391429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45237391657) 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, 363738 + ... + 471995.

It is an arithmetic number, because the mean of its divisors is an integer number (7539992148).

Almost surely, 2^45237391557 is an apocalyptic number.

It is an amenable number.

45237391557 is a deficient number, since it is larger than the sum of its proper divisors (15082545627).

45237391557 is a wasteful number, since it uses less digits than its factorization.

45237391557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853779.

The product of its digits is 3969000, while the sum is 51.

The spelling of 45237391557 in words is "forty-five billion, two hundred thirty-seven million, three hundred ninety-one thousand, five hundred fifty-seven".