972016986373 has 2 divisors, whose sum is σ = 972016986374. Its totient is φ = 972016986372.

The previous prime is 972016986349. The next prime is 972016986377. The reversal of 972016986373 is 373689610279.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 660939732324 + 311077254049 = 812982^2 + 557743^2 .

It is a cyclic number.

It is not a de Polignac number, because 972016986373 - 2²¹ = 972014889221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (972016986377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486008493186 + 486008493187.

It is an arithmetic number, because the mean of its divisors is an integer number (486008493187).

Almost surely, 2^972016986373 is an apocalyptic number.

It is an amenable number.

972016986373 is a deficient number, since it is larger than the sum of its proper divisors (1).

972016986373 is an equidigital number, since it uses as much as digits as its factorization.

972016986373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20575296, while the sum is 61.

The spelling of 972016986373 in words is "nine hundred seventy-two billion, sixteen million, nine hundred eighty-six thousand, three hundred seventy-three".