2251386973 has 8 divisors (see below), whose sum is σ = 2464740576. Its totient is φ = 2039480400.

The previous prime is 2251386961. The next prime is 2251387001. The reversal of 2251386973 is 3796831522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2251386973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251386923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358498 + ... + 364723.

It is an arithmetic number, because the mean of its divisors is an integer number (308092572).

Almost surely, 2^2251386973 is an apocalyptic number.

It is an amenable number.

2251386973 is a deficient number, since it is larger than the sum of its proper divisors (213353603).

2251386973 is a wasteful number, since it uses less digits than its factorization.

2251386973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723515.

The product of its digits is 544320, while the sum is 46.

The square root of 2251386973 is about 47448.7826292730. The cubic root of 2251386973 is about 1310.6398934689.

The spelling of 2251386973 in words is "two billion, two hundred fifty-one million, three hundred eighty-six thousand, nine hundred seventy-three".