975375976421 has 8 divisors (see below), whose sum is σ = 1216053165504. Its totient is φ = 760033228320.

The previous prime is 975375976343. The next prime is 975375976441. The reversal of 975375976421 is 124679573579.

975375976421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 975375976421 - 2¹⁸ = 975375714277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (975375976441) 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, 6333610160 + ... + 6333610313.

It is an arithmetic number, because the mean of its divisors is an integer number (152006645688).

Almost surely, 2^975375976421 is an apocalyptic number.

It is an amenable number.

975375976421 is a deficient number, since it is larger than the sum of its proper divisors (240677189083).

975375976421 is a wasteful number, since it uses less digits than its factorization.

975375976421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12667220491.

The product of its digits is 100018800, while the sum is 65.

The spelling of 975375976421 in words is "nine hundred seventy-five billion, three hundred seventy-five million, nine hundred seventy-six thousand, four hundred twenty-one".