2499641672 has 64 divisors (see below), whose sum is σ = 5473440000. Its totient is φ = 1058114880.

The previous prime is 2499641657. The next prime is 2499641681. The reversal of 2499641672 is 2761469942.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2499641672.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85979 + ... + 111317.

It is an arithmetic number, because the mean of its divisors is an integer number (85522500).

Almost surely, 2^2499641672 is an apocalyptic number.

2499641672 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2499641672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2736720000).

2499641672 is an abundant number, since it is smaller than the sum of its proper divisors (2973798328).

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

2499641672 is a wasteful number, since it uses less digits than its factorization.

2499641672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25434 (or 25430 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 50.

The square root of 2499641672 is about 49996.4165915918. The cubic root of 2499641672 is about 1357.1439617435.

The spelling of 2499641672 in words is "two billion, four hundred ninety-nine million, six hundred forty-one thousand, six hundred seventy-two".