4992156898 has 4 divisors (see below), whose sum is σ = 7488235350. Its totient is φ = 2496078448.

The previous prime is 4992156887. The next prime is 4992156901. The reversal of 4992156898 is 8986512994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8986512994 = 2 ⋅4493256497.

It can be written as a sum of positive squares in only one way, i.e., 3320410129 + 1671746769 = 57623^2 + 40887^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1248039223 + ... + 1248039226.

Almost surely, 2^4992156898 is an apocalyptic number.

4992156898 is a deficient number, since it is larger than the sum of its proper divisors (2496078452).

4992156898 is a wasteful number, since it uses less digits than its factorization.

4992156898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496078451.

The product of its digits is 11197440, while the sum is 61.

The square root of 4992156898 is about 70655.1972469117. The cubic root of 4992156898 is about 1709.0813777160.

The spelling of 4992156898 in words is "four billion, nine hundred ninety-two million, one hundred fifty-six thousand, eight hundred ninety-eight".