7902738898 has 16 divisors (see below), whose sum is σ = 12556047384. Its totient is φ = 3717561600.

The previous prime is 7902738887. The next prime is 7902738901. The reversal of 7902738898 is 8988372097.

It can be written as a sum of positive squares in 4 ways, for example, as 7845176329 + 57562569 = 88573^2 + 7587^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53548 + ... + 136648.

Almost surely, 2^7902738898 is an apocalyptic number.

7902738898 is a deficient number, since it is larger than the sum of its proper divisors (4653308486).

7902738898 is a wasteful number, since it uses less digits than its factorization.

7902738898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85917.

The product of its (nonzero) digits is 12192768, while the sum is 61.

The square root of 7902738898 is about 88897.3503429658. The cubic root of 7902738898 is about 1991.8618382439.

The spelling of 7902738898 in words is "seven billion, nine hundred two million, seven hundred thirty-eight thousand, eight hundred ninety-eight".