249884772434 has 16 divisors (see below), whose sum is σ = 415832905440. Its totient is φ = 111658834560.

The previous prime is 249884772409. The next prime is 249884772491. The reversal of 249884772434 is 434277488942.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96256319 + ... + 96258914.

It is an arithmetic number, because the mean of its divisors is an integer number (25989556590).

Almost surely, 2^249884772434 is an apocalyptic number.

249884772434 is a deficient number, since it is larger than the sum of its proper divisors (165948133006).

249884772434 is a wasteful number, since it uses less digits than its factorization.

249884772434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192515305.

The product of its digits is 86704128, while the sum is 62.

The spelling of 249884772434 in words is "two hundred forty-nine billion, eight hundred eighty-four million, seven hundred seventy-two thousand, four hundred thirty-four".