2451317890 has 32 divisors (see below), whose sum is σ = 5339343744. Its totient is φ = 791013120.

The previous prime is 2451317867. The next prime is 2451317903. The reversal of 2451317890 is 987131542.

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, 1028776 + ... + 1031155.

It is an arithmetic number, because the mean of its divisors is an integer number (166854492).

Almost surely, 2^2451317890 is an apocalyptic number.

2451317890 is an abundant number, since it is smaller than the sum of its proper divisors (2888025854).

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

2451317890 is a wasteful number, since it uses less digits than its factorization.

2451317890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059962.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 2451317890 is about 49510.7855926363. The cubic root of 2451317890 is about 1348.3414272639.

The spelling of 2451317890 in words is "two billion, four hundred fifty-one million, three hundred seventeen thousand, eight hundred ninety".