634274816877173 has 16 divisors (see below), whose sum is σ = 653242685207616. Its totient is φ = 615572868318720.

The previous prime is 634274816877167. The next prime is 634274816877187. The reversal of 634274816877173 is 371778618472436.

It is a cyclic number.

It is not a de Polignac number, because 634274816877173 - 2⁶ = 634274816877109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 634274816877173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634274816877193) 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, 22018811 + ... + 41873352.

It is an arithmetic number, because the mean of its divisors is an integer number (40827667825476).

Almost surely, 2^{634274816877173} is an apocalyptic number.

It is an amenable number.

634274816877173 is a deficient number, since it is larger than the sum of its proper divisors (18967868330443).

634274816877173 is a wasteful number, since it uses less digits than its factorization.

634274816877173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63894244.

The product of its digits is 1593188352, while the sum is 74.

The spelling of 634274816877173 in words is "six hundred thirty-four trillion, two hundred seventy-four billion, eight hundred sixteen million, eight hundred seventy-seven thousand, one hundred seventy-three".