11621510297 has 2 divisors, whose sum is σ = 11621510298. Its totient is φ = 11621510296.

The previous prime is 11621510281. The next prime is 11621510321. The reversal of 11621510297 is 79201512611.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11486694976 + 134815321 = 107176^2 + 11611^2 .

It is a cyclic number.

It is not a de Polignac number, because 11621510297 - 2⁴ = 11621510281 is a prime.

It is not a weakly prime, because it can be changed into another prime (11621512297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5810755148 + 5810755149.

It is an arithmetic number, because the mean of its divisors is an integer number (5810755149).

Almost surely, 2^11621510297 is an apocalyptic number.

It is an amenable number.

11621510297 is a deficient number, since it is larger than the sum of its proper divisors (1).

11621510297 is an equidigital number, since it uses as much as digits as its factorization.

11621510297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 35.

The spelling of 11621510297 in words is "eleven billion, six hundred twenty-one million, five hundred ten thousand, two hundred ninety-seven".