9901457502 has 32 divisors (see below), whose sum is σ = 20000587392. Its totient is φ = 3267579744.

The previous prime is 9901457491. The next prime is 9901457507. The reversal of 9901457502 is 2057541099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9901457507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1278213 + ... + 1285935.

It is an arithmetic number, because the mean of its divisors is an integer number (625018356).

Almost surely, 2^9901457502 is an apocalyptic number.

9901457502 is an abundant number, since it is smaller than the sum of its proper divisors (10099129890).

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

9901457502 is a wasteful number, since it uses less digits than its factorization.

9901457502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9832.

The product of its (nonzero) digits is 113400, while the sum is 42.

The square root of 9901457502 is about 99506.0676642384. The cubic root of 9901457502 is about 2147.3345372761.

The spelling of 9901457502 in words is "nine billion, nine hundred one million, four hundred fifty-seven thousand, five hundred two".