7542872736 has 48 divisors (see below), whose sum is σ = 22628620224. Its totient is φ = 2155106304.

The previous prime is 7542872699. The next prime is 7542872741. The reversal of 7542872736 is 6372782457.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×7542872736² (a number of 21 digits) contains 22 as substring.

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, 5611585 + ... + 5612928.

It is an arithmetic number, because the mean of its divisors is an integer number (471429588).

Almost surely, 2^7542872736 is an apocalyptic number.

It is an amenable number.

7542872736 is an abundant number, since it is smaller than the sum of its proper divisors (15085747488).

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

7542872736 is a wasteful number, since it uses less digits than its factorization.

7542872736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11224533 (or 11224525 counting only the distinct ones).

The product of its digits is 3951360, while the sum is 51.

The square root of 7542872736 is about 86849.7135055724. The cubic root of 7542872736 is about 1961.1565380294.

The spelling of 7542872736 in words is "seven billion, five hundred forty-two million, eight hundred seventy-two thousand, seven hundred thirty-six".