949137931905 has 64 divisors (see below), whose sum is σ = 1620020736000. Its totient is φ = 473146071552.

The previous prime is 949137931897. The next prime is 949137931909. The reversal of 949137931905 is 509139731949.

It is not a de Polignac number, because 949137931905 - 2³ = 949137931897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (949137931909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11703586 + ... + 11784404.

It is an arithmetic number, because the mean of its divisors is an integer number (25312824000).

Almost surely, 2^949137931905 is an apocalyptic number.

949137931905 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

949137931905 is a deficient number, since it is larger than the sum of its proper divisors (670882804095).

949137931905 is a wasteful number, since it uses less digits than its factorization.

949137931905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81398.

The product of its (nonzero) digits is 8266860, while the sum is 60.

The spelling of 949137931905 in words is "nine hundred forty-nine billion, one hundred thirty-seven million, nine hundred thirty-one thousand, nine hundred five".