7491943152 has 40 divisors (see below), whose sum is σ = 21504652880. Its totient is φ = 2497314240.

The previous prime is 7491943139. The next prime is 7491943169. The reversal of 7491943152 is 2513491947.

7491943152 is a `hidden beast` number, since 7 + 491 + 9 + 4 + 3 + 152 = 666.

It is a super-2 number, since 2×7491943152² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7491943098 and 7491943107.

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, 8670799 + ... + 8671662.

It is an arithmetic number, because the mean of its divisors is an integer number (537616322).

Almost surely, 2^7491943152 is an apocalyptic number.

7491943152 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7491943152 is an abundant number, since it is smaller than the sum of its proper divisors (14012709728).

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

7491943152 is a wasteful number, since it uses less digits than its factorization.

7491943152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17342478 (or 17342466 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 7491943152 is about 86556.0116456390. The cubic root of 7491943152 is about 1956.7326473685.

The spelling of 7491943152 in words is "seven billion, four hundred ninety-one million, nine hundred forty-three thousand, one hundred fifty-two".