974901109478 has 4 divisors (see below), whose sum is σ = 1462351664220. Its totient is φ = 487450554738.

The previous prime is 974901109477. The next prime is 974901109493. The reversal of 974901109478 is 874901109479.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×974901109478² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (974901109477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243725277368 + ... + 243725277371.

It is an arithmetic number, because the mean of its divisors is an integer number (365587916055).

Almost surely, 2^974901109478 is an apocalyptic number.

974901109478 is a deficient number, since it is larger than the sum of its proper divisors (487450554742).

974901109478 is a wasteful number, since it uses less digits than its factorization.

974901109478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487450554741.

The product of its (nonzero) digits is 4572288, while the sum is 59.

Subtracting from 974901109478 its reverse (874901109479), we obtain a palindrome (99999999999).

The spelling of 974901109478 in words is "nine hundred seventy-four billion, nine hundred one million, one hundred nine thousand, four hundred seventy-eight".