2978901426432 has 72 divisors (see below), whose sum is σ = 8121593380320. Its totient is φ = 968748421120.

The previous prime is 2978901426409. The next prime is 2978901426439. The reversal of 2978901426432 is 2346241098792.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2978901426439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47270682 + ... + 47333657.

It is an arithmetic number, because the mean of its divisors is an integer number (112799908060).

Almost surely, 2^{2978901426432} is an apocalyptic number.

It is an amenable number.

2978901426432 is an abundant number, since it is smaller than the sum of its proper divisors (5142691953888).

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

2978901426432 is an equidigital number, since it uses as much as digits as its factorization.

2978901426432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94604399 (or 94604385 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 2978901426432 in words is "two trillion, nine hundred seventy-eight billion, nine hundred one million, four hundred twenty-six thousand, four hundred thirty-two".