178397963028 has 72 divisors (see below), whose sum is σ = 468020044128. Its totient is φ = 59419223136.

The previous prime is 178397963021. The next prime is 178397963033. The reversal of 178397963028 is 820369793871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (178397963021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1175550 + ... + 1318602.

Almost surely, 2^178397963028 is an apocalyptic number.

178397963028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 178397963028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234010022064).

178397963028 is an abundant number, since it is smaller than the sum of its proper divisors (289622081100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

178397963028 is a wasteful number, since it uses less digits than its factorization.

178397963028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144355 (or 144341 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The spelling of 178397963028 in words is "one hundred seventy-eight billion, three hundred ninety-seven million, nine hundred sixty-three thousand, twenty-eight".