7498457988 has 96 divisors (see below), whose sum is σ = 21191030784. Its totient is φ = 2014591488.

The previous prime is 7498457963. The next prime is 7498458013. The reversal of 7498457988 is 8897548947.

It is an interprime number because it is at equal distance from previous prime (7498457963) and next prime (7498458013).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2636095 + ... + 2638937.

It is an arithmetic number, because the mean of its divisors is an integer number (220739904).

Almost surely, 2^7498457988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7498457988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10595515392).

7498457988 is an abundant number, since it is smaller than the sum of its proper divisors (13692572796).

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

7498457988 is a wasteful number, since it uses less digits than its factorization.

7498457988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4721 (or 4719 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 69.

The square root of 7498457988 is about 86593.6371103559. The cubic root of 7498457988 is about 1957.2996608811.

The spelling of 7498457988 in words is "seven billion, four hundred ninety-eight million, four hundred fifty-seven thousand, nine hundred eighty-eight".