249537706473 has 16 divisors (see below), whose sum is σ = 364521733056. Its totient is φ = 150585891840.

The previous prime is 249537706447. The next prime is 249537706487. The reversal of 249537706473 is 374607735942.

It is not a de Polignac number, because 249537706473 - 2¹³ = 249537698281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (249537706493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16219240 + ... + 16234617.

It is an arithmetic number, because the mean of its divisors is an integer number (22782608316).

Almost surely, 2^249537706473 is an apocalyptic number.

It is an amenable number.

249537706473 is a deficient number, since it is larger than the sum of its proper divisors (114984026583).

249537706473 is a wasteful number, since it uses less digits than its factorization.

249537706473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32454104.

The product of its (nonzero) digits is 26671680, while the sum is 57.

The spelling of 249537706473 in words is "two hundred forty-nine billion, five hundred thirty-seven million, seven hundred six thousand, four hundred seventy-three".