975776478 has 16 divisors (see below), whose sum is σ = 1952178816. Its totient is φ = 325154520.

The previous prime is 975776471. The next prime is 975776513. The reversal of 975776478 is 874677579.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (975776471) 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, 4426 + ... + 44397.

It is an arithmetic number, because the mean of its divisors is an integer number (122011176).

Almost surely, 2^975776478 is an apocalyptic number.

975776478 is an abundant number, since it is smaller than the sum of its proper divisors (976402338).

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

975776478 is a wasteful number, since it uses less digits than its factorization.

975776478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52159.

The product of its digits is 20744640, while the sum is 60.

The square root of 975776478 is about 31237.4211163470. The cubic root of 975776478 is about 991.8594031739.

The spelling of 975776478 in words is "nine hundred seventy-five million, seven hundred seventy-six thousand, four hundred seventy-eight".