973521427857 has 8 divisors (see below), whose sum is σ = 1416031167840. Its totient is φ = 590012986560.

The previous prime is 973521427793. The next prime is 973521427873. The reversal of 973521427857 is 758724125379.

It is a happy number.

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

It is not a de Polignac number, because 973521427857 - 2⁶ = 973521427793 is a prime.

It is a super-2 number, since 2×973521427857² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 973521427857.

It is not an unprimeable number, because it can be changed into a prime (973521427877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14750324632 + ... + 14750324697.

It is an arithmetic number, because the mean of its divisors is an integer number (177003895980).

Almost surely, 2^973521427857 is an apocalyptic number.

It is an amenable number.

973521427857 is a deficient number, since it is larger than the sum of its proper divisors (442509739983).

973521427857 is a wasteful number, since it uses less digits than its factorization.

973521427857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29500649343.

The product of its digits is 29635200, while the sum is 60.

The spelling of 973521427857 in words is "nine hundred seventy-three billion, five hundred twenty-one million, four hundred twenty-seven thousand, eight hundred fifty-seven".