2139614862 has 64 divisors (see below), whose sum is σ = 5356689408. Its totient is φ = 553500000.

The previous prime is 2139614857. The next prime is 2139614903. The reversal of 2139614862 is 2684169312.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106737 + ... + 125187.

It is an arithmetic number, because the mean of its divisors is an integer number (83698272).

Almost surely, 2^2139614862 is an apocalyptic number.

2139614862 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2139614862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2678344704).

2139614862 is an abundant number, since it is smaller than the sum of its proper divisors (3217074546).

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

2139614862 is a wasteful number, since it uses less digits than its factorization.

2139614862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18725.

The product of its digits is 124416, while the sum is 42.

The square root of 2139614862 is about 46255.9710956326. The cubic root of 2139614862 is about 1288.5814308244.

The spelling of 2139614862 in words is "two billion, one hundred thirty-nine million, six hundred fourteen thousand, eight hundred sixty-two".