68147991410 has 32 divisors (see below), whose sum is σ = 130265228160. Its totient is φ = 25595958528.

The previous prime is 68147991397. The next prime is 68147991419. The reversal of 68147991410 is 1419974186.

It is not an unprimeable number, because it can be changed into a prime (68147991419) 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, 1565582 + ... + 1608521.

It is an arithmetic number, because the mean of its divisors is an integer number (4070788380).

Almost surely, 2^68147991410 is an apocalyptic number.

68147991410 is a deficient number, since it is larger than the sum of its proper divisors (62117236750).

68147991410 is a wasteful number, since it uses less digits than its factorization.

68147991410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3174242.

The product of its (nonzero) digits is 435456, while the sum is 50.

The spelling of 68147991410 in words is "sixty-eight billion, one hundred forty-seven million, nine hundred ninety-one thousand, four hundred ten".