45237391556 has 12 divisors (see below), whose sum is σ = 90474783168. Its totient is φ = 19387453512.

The previous prime is 45237391543. The next prime is 45237391601. The reversal of 45237391556 is 65519373254.

It is a happy number.

45237391556 is an admirable number.

It is a super-2 number, since 2×45237391556² (a number of 22 digits) contains 22 as substring.

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, 807810536 + ... + 807810591.

It is an arithmetic number, because the mean of its divisors is an integer number (7539565264).

Almost surely, 2^45237391556 is an apocalyptic number.

It is an amenable number.

45237391556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

45237391556 is a wasteful number, since it uses less digits than its factorization.

45237391556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615621138 (or 1615621136 counting only the distinct ones).

The product of its digits is 3402000, while the sum is 50.

The spelling of 45237391556 in words is "forty-five billion, two hundred thirty-seven million, three hundred ninety-one thousand, five hundred fifty-six".