32972749057 has 2 divisors, whose sum is σ = 32972749058. Its totient is φ = 32972749056.

The previous prime is 32972749001. The next prime is 32972749081. The reversal of 32972749057 is 75094727923.

It is a happy number.

It is a Cunningham number, because it is equal to 181584²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32972749056 + 1 = 181584^2 + 1^2 .

It is an emirp because it is prime and its reverse (75094727923) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32972749057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32972748989 and 32972749007.

It is not a weakly prime, because it can be changed into another prime (32972749157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16486374528 + 16486374529.

It is an arithmetic number, because the mean of its divisors is an integer number (16486374529).

Almost surely, 2^32972749057 is an apocalyptic number.

It is an amenable number.

32972749057 is a deficient number, since it is larger than the sum of its proper divisors (1).

32972749057 is an equidigital number, since it uses as much as digits as its factorization.

32972749057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6667920, while the sum is 55.

The spelling of 32972749057 in words is "thirty-two billion, nine hundred seventy-two million, seven hundred forty-nine thousand, fifty-seven".