2251718996 has 12 divisors (see below), whose sum is σ = 3940852020. Its totient is φ = 1125761280.

The previous prime is 2251718993. The next prime is 2251719031. The reversal of 2251718996 is 6998171522.

It can be written as a sum of positive squares in 2 ways, for example, as 2226518596 + 25200400 = 47186^2 + 5020^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251718993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57476 + ... + 88356.

It is an arithmetic number, because the mean of its divisors is an integer number (328404335).

Almost surely, 2^2251718996 is an apocalyptic number.

It is an amenable number.

2251718996 is a deficient number, since it is larger than the sum of its proper divisors (1689133024).

2251718996 is a wasteful number, since it uses less digits than its factorization.

2251718996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49114 (or 49112 counting only the distinct ones).

The product of its digits is 544320, while the sum is 50.

The square root of 2251718996 is about 47452.2812518007. The cubic root of 2251718996 is about 1310.7043191177.

The spelling of 2251718996 in words is "two billion, two hundred fifty-one million, seven hundred eighteen thousand, nine hundred ninety-six".