980340197478 has 64 divisors (see below), whose sum is σ = 2088301436928. Its totient is φ = 306319196160.

The previous prime is 980340197477. The next prime is 980340197503. The reversal of 980340197478 is 874791043089.

It is a super-2 number, since 2×980340197478² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980340197471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 269926 + ... + 1426022.

It is an arithmetic number, because the mean of its divisors is an integer number (32629709952).

Almost surely, 2^980340197478 is an apocalyptic number.

980340197478 is an abundant number, since it is smaller than the sum of its proper divisors (1107961239450).

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

980340197478 is a wasteful number, since it uses less digits than its factorization.

980340197478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156277.

The product of its (nonzero) digits is 12192768, while the sum is 60.

The spelling of 980340197478 in words is "nine hundred eighty billion, three hundred forty million, one hundred ninety-seven thousand, four hundred seventy-eight".