899129906739 has 48 divisors (see below), whose sum is σ = 1353178226400. Its totient is φ = 596607814656.

The previous prime is 899129906737. The next prime is 899129906783. The reversal of 899129906739 is 937609921998.

It is not a de Polignac number, because 899129906739 - 2¹ = 899129906737 is a prime.

It is a super-2 number, since 2×899129906739² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (899129906737) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46125507 + ... + 46144995.

It is an arithmetic number, because the mean of its divisors is an integer number (28191213050).

Almost surely, 2^899129906739 is an apocalyptic number.

899129906739 is a deficient number, since it is larger than the sum of its proper divisors (454048319661).

899129906739 is a wasteful number, since it uses less digits than its factorization.

899129906739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20386 (or 20374 counting only the distinct ones).

The product of its (nonzero) digits is 119042784, while the sum is 72.

The spelling of 899129906739 in words is "eight hundred ninety-nine billion, one hundred twenty-nine million, nine hundred six thousand, seven hundred thirty-nine".