68187955 has 16 divisors (see below), whose sum is σ = 89745408. Its totient is φ = 49324000.

The previous prime is 68187943. The next prime is 68187983. The reversal of 68187955 is 55978186.

It is not a de Polignac number, because 68187955 - 2⁵ = 68187923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68187899 and 68187908.

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, 7260 + ... + 13750.

It is an arithmetic number, because the mean of its divisors is an integer number (5609088).

Almost surely, 2^68187955 is an apocalyptic number.

68187955 is a deficient number, since it is larger than the sum of its proper divisors (21557453).

68187955 is a wasteful number, since it uses less digits than its factorization.

68187955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6698.

The product of its digits is 604800, while the sum is 49.

The square root of 68187955 is about 8257.5998328812. The cubic root of 68187955 is about 408.5412267309.

The spelling of 68187955 in words is "sixty-eight million, one hundred eighty-seven thousand, nine hundred fifty-five".