249339291944 has 8 divisors (see below), whose sum is σ = 467511172410. Its totient is φ = 124669645968.

The previous prime is 249339291937. The next prime is 249339291967. The reversal of 249339291944 is 449192933942.

It can be written as a sum of positive squares in only one way, i.e., 190586379844 + 58752912100 = 436562^2 + 242390^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×249339291944³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15583705739 + ... + 15583705754.

Almost surely, 2^249339291944 is an apocalyptic number.

It is an amenable number.

249339291944 is a deficient number, since it is larger than the sum of its proper divisors (218171880466).

249339291944 is a wasteful number, since it uses less digits than its factorization.

249339291944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31167411499 (or 31167411495 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 59.

The spelling of 249339291944 in words is "two hundred forty-nine billion, three hundred thirty-nine million, two hundred ninety-one thousand, nine hundred forty-four".