978447237126 has 32 divisors (see below), whose sum is σ = 1961002071168. Its totient is φ = 325465032960.

The previous prime is 978447237017. The next prime is 978447237167. The reversal of 978447237126 is 621732744879.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 978447237126.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7134966 + ... + 7270806.

It is an arithmetic number, because the mean of its divisors is an integer number (61281314724).

Almost surely, 2^978447237126 is an apocalyptic number.

978447237126 is an abundant number, since it is smaller than the sum of its proper divisors (982554834042).

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

978447237126 is a wasteful number, since it uses less digits than its factorization.

978447237126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138356.

The product of its digits is 28449792, while the sum is 60.

It can be divided in two parts, 97844723712 and 6, that multiplied together give a 7-th power (587068342272 = 48⁷).

The spelling of 978447237126 in words is "nine hundred seventy-eight billion, four hundred forty-seven million, two hundred thirty-seven thousand, one hundred twenty-six".