32378457426 has 128 divisors (see below), whose sum is σ = 77361039360. Its totient is φ = 8842563072.

The previous prime is 32378457413. The next prime is 32378457443. The reversal of 32378457426 is 62475487323.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29514910 + ... + 29516006.

It is an arithmetic number, because the mean of its divisors is an integer number (604383120).

Almost surely, 2^32378457426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32378457426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38680519680).

32378457426 is an abundant number, since it is smaller than the sum of its proper divisors (44982581934).

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

32378457426 is a wasteful number, since it uses less digits than its factorization.

32378457426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488.

The product of its digits is 6773760, while the sum is 51.

The spelling of 32378457426 in words is "thirty-two billion, three hundred seventy-eight million, four hundred fifty-seven thousand, four hundred twenty-six".