63699428337 has 16 divisors (see below), whose sum is σ = 86139436032. Its totient is φ = 41863001040.

The previous prime is 63699428323. The next prime is 63699428363. The reversal of 63699428337 is 73382499636.

63699428337 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63699428337 - 2⁴ = 63699428321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63699828337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2545038 + ... + 2569944.

It is an arithmetic number, because the mean of its divisors is an integer number (5383714752).

Almost surely, 2^63699428337 is an apocalyptic number.

It is an amenable number.

63699428337 is a deficient number, since it is larger than the sum of its proper divisors (22440007695).

63699428337 is a wasteful number, since it uses less digits than its factorization.

63699428337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36988.

The product of its digits is 35271936, while the sum is 60.

The spelling of 63699428337 in words is "sixty-three billion, six hundred ninety-nine million, four hundred twenty-eight thousand, three hundred thirty-seven".