7545109972 has 12 divisors (see below), whose sum is σ = 13204797760. Its totient is φ = 3772310616.

The previous prime is 7545109961. The next prime is 7545109981. The reversal of 7545109972 is 2799015457.

It is a happy number.

It is a congruent number.

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, 20479 + ... + 124537.

Almost surely, 2^7545109972 is an apocalyptic number.

It is an amenable number.

7545109972 is a deficient number, since it is larger than the sum of its proper divisors (5659687788).

7545109972 is a wasteful number, since it uses less digits than its factorization.

7545109972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122190 (or 122188 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 49.

The square root of 7545109972 is about 86862.5924780052. The cubic root of 7545109972 is about 1961.3504136011.

The spelling of 7545109972 in words is "seven billion, five hundred forty-five million, one hundred nine thousand, nine hundred seventy-two".