7491051792 has 360 divisors, whose sum is σ = 26286174720. Its totient is φ = 1979873280.

The previous prime is 7491051779. The next prime is 7491051797. The reversal of 7491051792 is 2971501947.

7491051792 is a `hidden beast` number, since 7 + 49 + 1 + 0 + 517 + 92 = 666.

It is a super-2 number, since 2×7491051792² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7491051797) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5030184 + ... + 5031672.

It is an arithmetic number, because the mean of its divisors is an integer number (73017152).

Almost surely, 2^7491051792 is an apocalyptic number.

7491051792 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7491051792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13143087360).

7491051792 is an abundant number, since it is smaller than the sum of its proper divisors (18795122928).

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

7491051792 is a wasteful number, since it uses less digits than its factorization.

7491051792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571 (or 1555 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 45.

The square root of 7491051792 is about 86550.8624567081. The cubic root of 7491051792 is about 1956.6550430073.

The spelling of 7491051792 in words is "seven billion, four hundred ninety-one million, fifty-one thousand, seven hundred ninety-two".