7245865536 has 672 divisors, whose sum is σ = 26416650240. Its totient is φ = 1707982848.

The previous prime is 7245865447. The next prime is 7245865553. The reversal of 7245865536 is 6355685427.

It is a tau number, because it is divible by the number of its divisors (672).

Its product of digits (6048000) is a multiple of the sum of its prime divisors (140).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 99258396 + ... + 99258468.

Almost surely, 2^7245865536 is an apocalyptic number.

7245865536 is a gapful number since it is divisible by the number (76) 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 7245865536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13208325120).

7245865536 is an abundant number, since it is smaller than the sum of its proper divisors (19170784704).

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

7245865536 is a wasteful number, since it uses less digits than its factorization.

7245865536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 140 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 51.

The square root of 7245865536 is about 85122.6499587507. The cubic root of 7245865536 is about 1935.0703423073.

The spelling of 7245865536 in words is "seven billion, two hundred forty-five million, eight hundred sixty-five thousand, five hundred thirty-six".