4997611836 has 72 divisors (see below), whose sum is σ = 14510976480. Its totient is φ = 1420626816.

The previous prime is 4997611813. The next prime is 4997611877. The reversal of 4997611836 is 6381167994.

4997611836 is a `hidden beast` number, since 499 + 7 + 6 + 118 + 36 = 666.

It is a super-2 number, since 2×4997611836² = 49952248126654581792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 691 + ... + 99978.

It is an arithmetic number, because the mean of its divisors is an integer number (201541340).

Almost surely, 2^4997611836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4997611836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7255488240).

4997611836 is an abundant number, since it is smaller than the sum of its proper divisors (9513364644).

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

4997611836 is a wasteful number, since it uses less digits than its factorization.

4997611836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100883 (or 100878 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 4997611836 is about 70693.7892321525. The cubic root of 4997611836 is about 1709.7036564541.

The spelling of 4997611836 in words is "four billion, nine hundred ninety-seven million, six hundred eleven thousand, eight hundred thirty-six".