268503689560398 has 64 divisors (see below), whose sum is σ = 557583889231872. Its totient is φ = 86105792989440.

The previous prime is 268503689560397. The next prime is 268503689560439. The reversal of 268503689560398 is 893065986305862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268503689560397) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 367977090 + ... + 368706042.

It is an arithmetic number, because the mean of its divisors is an integer number (8712248269248).

Almost surely, 2^{268503689560398} is an apocalyptic number.

268503689560398 is an abundant number, since it is smaller than the sum of its proper divisors (289080199671474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268503689560398 is a wasteful number, since it uses less digits than its factorization.

268503689560398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740609.

The product of its (nonzero) digits is 4031078400, while the sum is 78.

The spelling of 268503689560398 in words is "two hundred sixty-eight trillion, five hundred three billion, six hundred eighty-nine million, five hundred sixty thousand, three hundred ninety-eight".