268703639402 has 48 divisors (see below), whose sum is σ = 457377429600. Its totient is φ = 117409548480.

The previous prime is 268703639387. The next prime is 268703639419. The reversal of 268703639402 is 204936307862.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4205249 + ... + 4268667.

It is an arithmetic number, because the mean of its divisors is an integer number (9528696450).

Almost surely, 2^268703639402 is an apocalyptic number.

268703639402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

268703639402 is a deficient number, since it is larger than the sum of its proper divisors (188673790198).

268703639402 is a wasteful number, since it uses less digits than its factorization.

268703639402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63719 (or 63690 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 268703639402 in words is "two hundred sixty-eight billion, seven hundred three million, six hundred thirty-nine thousand, four hundred two".