102173365742 has 8 divisors (see below), whose sum is σ = 175154341296. Its totient is φ = 43788585312.

The previous prime is 102173365741. The next prime is 102173365759. The reversal of 102173365742 is 247563371201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 102173365742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102173365741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3649048763 + ... + 3649048790.

It is an arithmetic number, because the mean of its divisors is an integer number (21894292662).

Almost surely, 2^102173365742 is an apocalyptic number.

102173365742 is a deficient number, since it is larger than the sum of its proper divisors (72980975554).

102173365742 is an equidigital number, since it uses as much as digits as its factorization.

102173365742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7298097562.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 102173365742 in words is "one hundred two billion, one hundred seventy-three million, three hundred sixty-five thousand, seven hundred forty-two".