972021200047 has 2 divisors, whose sum is σ = 972021200048. Its totient is φ = 972021200046.

The previous prime is 972021199939. The next prime is 972021200053. The reversal of 972021200047 is 740002120279.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 972021200047 - 2¹⁵ = 972021167279 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 972021199985 and 972021200021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (972021200057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486010600023 + 486010600024.

It is an arithmetic number, because the mean of its divisors is an integer number (486010600024).

Almost surely, 2^972021200047 is an apocalyptic number.

972021200047 is a deficient number, since it is larger than the sum of its proper divisors (1).

972021200047 is an equidigital number, since it uses as much as digits as its factorization.

972021200047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The spelling of 972021200047 in words is "nine hundred seventy-two billion, twenty-one million, two hundred thousand, forty-seven".