30972733697 has 2 divisors, whose sum is σ = 30972733698. Its totient is φ = 30972733696.

The previous prime is 30972733691. The next prime is 30972733703. The reversal of 30972733697 is 79633727903.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (30972733691) and next prime (30972733703).

It can be written as a sum of positive squares in only one way, i.e., 26624122561 + 4348611136 = 163169^2 + 65944^2 .

It is a cyclic number.

It is not a de Polignac number, because 30972733697 - 2¹⁶ = 30972668161 is a prime.

It is not a weakly prime, because it can be changed into another prime (30972733691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15486366848 + 15486366849.

It is an arithmetic number, because the mean of its divisors is an integer number (15486366849).

Almost surely, 2^30972733697 is an apocalyptic number.

It is an amenable number.

30972733697 is a deficient number, since it is larger than the sum of its proper divisors (1).

30972733697 is an equidigital number, since it uses as much as digits as its factorization.

30972733697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9001692, while the sum is 56.

The spelling of 30972733697 in words is "thirty billion, nine hundred seventy-two million, seven hundred thirty-three thousand, six hundred ninety-seven".