10997899639 has 2 divisors, whose sum is σ = 10997899640. Its totient is φ = 10997899638.

The previous prime is 10997899613. The next prime is 10997899699. The reversal of 10997899639 is 93699879901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10997899639 - 2⁷ = 10997899511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10997899699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5498949819 + 5498949820.

It is an arithmetic number, because the mean of its divisors is an integer number (5498949820).

Almost surely, 2^10997899639 is an apocalyptic number.

10997899639 is a deficient number, since it is larger than the sum of its proper divisors (1).

10997899639 is an equidigital number, since it uses as much as digits as its factorization.

10997899639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 59521392, while the sum is 70.

The spelling of 10997899639 in words is "ten billion, nine hundred ninety-seven million, eight hundred ninety-nine thousand, six hundred thirty-nine".