378488172399 has 16 divisors (see below), whose sum is σ = 517385841504. Its totient is φ = 245968128000.

The previous prime is 378488172367. The next prime is 378488172407. The reversal of 378488172399 is 993271884873.

It is not a de Polignac number, because 378488172399 - 2⁵ = 378488172367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378488172319) 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, 1119202 + ... + 1417599.

It is an arithmetic number, because the mean of its divisors is an integer number (32336615094).

Almost surely, 2^378488172399 is an apocalyptic number.

378488172399 is a deficient number, since it is larger than the sum of its proper divisors (138897669105).

378488172399 is a wasteful number, since it uses less digits than its factorization.

378488172399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2538058.

The product of its digits is 146313216, while the sum is 69.

The spelling of 378488172399 in words is "three hundred seventy-eight billion, four hundred eighty-eight million, one hundred seventy-two thousand, three hundred ninety-nine".