9902485742 has 16 divisors (see below), whose sum is σ = 15224569920. Its totient is φ = 4828390368.

The previous prime is 9902485729. The next prime is 9902485799. The reversal of 9902485742 is 2475842099.

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, 164117 + ... + 216192.

It is an arithmetic number, because the mean of its divisors is an integer number (951535620).

Almost surely, 2^9902485742 is an apocalyptic number.

9902485742 is a deficient number, since it is larger than the sum of its proper divisors (5322084178).

9902485742 is a wasteful number, since it uses less digits than its factorization.

9902485742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380635.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 9902485742 is about 99511.2342502092. The cubic root of 9902485742 is about 2147.4088663615.

The spelling of 9902485742 in words is "nine billion, nine hundred two million, four hundred eighty-five thousand, seven hundred forty-two".