268415978061 has 32 divisors (see below), whose sum is σ = 446339045376. Its totient is φ = 139392792000.

The previous prime is 268415978029. The next prime is 268415978119. The reversal of 268415978061 is 160879514862.

It is not a de Polignac number, because 268415978061 - 2⁵ = 268415978029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 268415977992 and 268415978010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268415978261) 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, 555051 + ... + 919191.

It is an arithmetic number, because the mean of its divisors is an integer number (13948095168).

Almost surely, 2^268415978061 is an apocalyptic number.

268415978061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

268415978061 is a deficient number, since it is larger than the sum of its proper divisors (177923067315).

268415978061 is a wasteful number, since it uses less digits than its factorization.

268415978061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367353.

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 268415978061 in words is "two hundred sixty-eight billion, four hundred fifteen million, nine hundred seventy-eight thousand, sixty-one".