64338999267 has 12 divisors (see below), whose sum is σ = 87263979080. Its totient is φ = 42165664992.

The previous prime is 64338999253. The next prime is 64338999287. The reversal of 64338999267 is 76299983346.

It is not a de Polignac number, because 64338999267 - 2⁷ = 64338999139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64338999198 and 64338999207.

It is not an unprimeable number, because it can be changed into a prime (64338999287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3070042 + ... + 3090927.

Almost surely, 2^64338999267 is an apocalyptic number.

64338999267 is a deficient number, since it is larger than the sum of its proper divisors (22924979813).

64338999267 is an equidigital number, since it uses as much as digits as its factorization.

64338999267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6161090 (or 6161031 counting only the distinct ones).

The product of its digits is 105815808, while the sum is 66.

The spelling of 64338999267 in words is "sixty-four billion, three hundred thirty-eight million, nine hundred ninety-nine thousand, two hundred sixty-seven".