249348342765 has 16 divisors (see below), whose sum is σ = 399012710400. Its totient is φ = 132967328832.

The previous prime is 249348342743. The next prime is 249348342821. The reversal of 249348342765 is 567243843942.

It is a happy number.

It is not a de Polignac number, because 249348342765 - 2¹⁶ = 249348277229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1041325 + ... + 1258194.

It is an arithmetic number, because the mean of its divisors is an integer number (24938294400).

Almost surely, 2^249348342765 is an apocalyptic number.

It is an amenable number.

249348342765 is a deficient number, since it is larger than the sum of its proper divisors (149664367635).

249348342765 is a wasteful number, since it uses less digits than its factorization.

249348342765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306756.

The product of its digits is 34836480, while the sum is 57.

The spelling of 249348342765 in words is "two hundred forty-nine billion, three hundred forty-eight million, three hundred forty-two thousand, seven hundred sixty-five".