45123538712 has 32 divisors (see below), whose sum is σ = 97184149920. Its totient is φ = 19240488960.

The previous prime is 45123538699. The next prime is 45123538721. The reversal of 45123538712 is 21783532154.

It is a super-2 number, since 2×45123538712² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45123538712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2034089 + ... + 2056152.

It is an arithmetic number, because the mean of its divisors is an integer number (3037004685).

Almost surely, 2^45123538712 is an apocalyptic number.

It is an amenable number.

45123538712 is an abundant number, since it is smaller than the sum of its proper divisors (52060611208).

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

45123538712 is a wasteful number, since it uses less digits than its factorization.

45123538712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4090451 (or 4090447 counting only the distinct ones).

The product of its digits is 201600, while the sum is 41.

The spelling of 45123538712 in words is "forty-five billion, one hundred twenty-three million, five hundred thirty-eight thousand, seven hundred twelve".