263542245415 has 16 divisors (see below), whose sum is σ = 327197400480. Its totient is φ = 203537837440.

The previous prime is 263542245349. The next prime is 263542245437. The reversal of 263542245415 is 514542245362.

It is a de Polignac number, because none of the positive numbers 2^k-263542245415 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, 1073577 + ... + 1296013.

It is an arithmetic number, because the mean of its divisors is an integer number (20449837530).

Almost surely, 2^263542245415 is an apocalyptic number.

263542245415 is a deficient number, since it is larger than the sum of its proper divisors (63655155065).

263542245415 is a wasteful number, since it uses less digits than its factorization.

263542245415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230642.

The product of its digits is 1152000, while the sum is 43.

The spelling of 263542245415 in words is "two hundred sixty-three billion, five hundred forty-two million, two hundred forty-five thousand, four hundred fifteen".