9902759444 has 6 divisors (see below), whose sum is σ = 17329829034. Its totient is φ = 4951379720.

The previous prime is 9902759431. The next prime is 9902759453. The reversal of 9902759444 is 4449572099.

It can be written as a sum of positive squares in only one way, i.e., 8923069444 + 979690000 = 94462^2 + 31300^2 .

It is a super-3 number, since 3×9902759444³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1237844927 + ... + 1237844934.

It is an arithmetic number, because the mean of its divisors is an integer number (2888304839).

Almost surely, 2^9902759444 is an apocalyptic number.

It is an amenable number.

9902759444 is a deficient number, since it is larger than the sum of its proper divisors (7427069590).

9902759444 is a wasteful number, since it uses less digits than its factorization.

9902759444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475689865 (or 2475689863 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 53.

The square root of 9902759444 is about 99512.6094723679. The cubic root of 9902759444 is about 2147.4286507773.

The spelling of 9902759444 in words is "nine billion, nine hundred two million, seven hundred fifty-nine thousand, four hundred forty-four".