1945000207572 has 48 divisors (see below), whose sum is σ = 4895960594112. Its totient is φ = 598683005440.

The previous prime is 1945000207529. The next prime is 1945000207597. The reversal of 1945000207572 is 2757020005491.

It is a super-2 number, since 2×1945000207572² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89935554 + ... + 89957177.

It is an arithmetic number, because the mean of its divisors is an integer number (101999179044).

Almost surely, 2^{1945000207572} is an apocalyptic number.

1945000207572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1945000207572 is an abundant number, since it is smaller than the sum of its proper divisors (2950960386540).

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

1945000207572 is a wasteful number, since it uses less digits than its factorization.

1945000207572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179892808 (or 179892806 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 42.

The spelling of 1945000207572 in words is "one trillion, nine hundred forty-five billion, two hundred seven thousand, five hundred seventy-two".