68203277493 has 64 divisors (see below), whose sum is σ = 104884899840. Its totient is φ = 39091852800.

The previous prime is 68203277489. The next prime is 68203277531. The reversal of 68203277493 is 39477230286.

It is not a de Polignac number, because 68203277493 - 2² = 68203277489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68203277393) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23204818 + ... + 23207756.

It is an arithmetic number, because the mean of its divisors is an integer number (1638826560).

Almost surely, 2^68203277493 is an apocalyptic number.

It is an amenable number.

68203277493 is a deficient number, since it is larger than the sum of its proper divisors (36681622347).

68203277493 is a wasteful number, since it uses less digits than its factorization.

68203277493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3650.

The product of its (nonzero) digits is 3048192, while the sum is 51.

It can be divided in two parts, 68203 and 277493, that added together give a triangular number (345696 = T₈₃₁).

The spelling of 68203277493 in words is "sixty-eight billion, two hundred three million, two hundred seventy-seven thousand, four hundred ninety-three".