2493661251 has 32 divisors (see below), whose sum is σ = 3646944000. Its totient is φ = 1509556608.

The previous prime is 2493661229. The next prime is 2493661393. The reversal of 2493661251 is 1521663942.

It is not a de Polignac number, because 2493661251 - 2¹⁵ = 2493628483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2493662251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224341 + ... + 235193.

It is an arithmetic number, because the mean of its divisors is an integer number (113967000).

Almost surely, 2^2493661251 is an apocalyptic number.

2493661251 is a deficient number, since it is larger than the sum of its proper divisors (1153282749).

2493661251 is a wasteful number, since it uses less digits than its factorization.

2493661251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11043.

The product of its digits is 77760, while the sum is 39.

The square root of 2493661251 is about 49936.5722792424. The cubic root of 2493661251 is about 1356.0607700030.

The spelling of 2493661251 in words is "two billion, four hundred ninety-three million, six hundred sixty-one thousand, two hundred fifty-one".