68476881 has 16 divisors (see below), whose sum is σ = 101092608. Its totient is φ = 40880400.

The previous prime is 68476829. The next prime is 68476883. The reversal of 68476881 is 18867486.

It is not a de Polignac number, because 68476881 - 2¹⁹ = 67952593 is a prime.

It is a super-2 number, since 2×68476881² = 9378166462976322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68476881.

It is not an unprimeable number, because it can be changed into a prime (68476883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13275 + ... + 17696.

It is an arithmetic number, because the mean of its divisors is an integer number (6318288).

Almost surely, 2^68476881 is an apocalyptic number.

It is an amenable number.

68476881 is a deficient number, since it is larger than the sum of its proper divisors (32615727).

68476881 is a wasteful number, since it uses less digits than its factorization.

68476881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31052.

The product of its digits is 516096, while the sum is 48.

The square root of 68476881 is about 8275.0758908907. The cubic root of 68476881 is about 409.1174372786.

The spelling of 68476881 in words is "sixty-eight million, four hundred seventy-six thousand, eight hundred eighty-one".