68498338947 has 32 divisors (see below), whose sum is σ = 94596311040. Its totient is φ = 44043264000.

The previous prime is 68498338943. The next prime is 68498338963. The reversal of 68498338947 is 74983389486.

It is not a de Polignac number, because 68498338947 - 2² = 68498338943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68498338943) 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, 57999697 + ... + 58000877.

It is an arithmetic number, because the mean of its divisors is an integer number (2956134720).

Almost surely, 2^68498338947 is an apocalyptic number.

68498338947 is a deficient number, since it is larger than the sum of its proper divisors (26097972093).

68498338947 is a wasteful number, since it uses less digits than its factorization.

68498338947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795.

The product of its digits is 250822656, while the sum is 69.

The spelling of 68498338947 in words is "sixty-eight billion, four hundred ninety-eight million, three hundred thirty-eight thousand, nine hundred forty-seven".