6625499394 has 32 divisors (see below), whose sum is σ = 13427467200. Its totient is φ = 2179261952.

The previous prime is 6625499371. The next prime is 6625499423. The reversal of 6625499394 is 4939945266.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132382 + ... + 175430.

It is an arithmetic number, because the mean of its divisors is an integer number (419608350).

Almost surely, 2^6625499394 is an apocalyptic number.

6625499394 is an abundant number, since it is smaller than the sum of its proper divisors (6801967806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6625499394 is a wasteful number, since it uses less digits than its factorization.

6625499394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43394.

The product of its digits is 12597120, while the sum is 57.

The square root of 6625499394 is about 81397.1706756445. The cubic root of 6625499394 is about 1878.1900675366.

The spelling of 6625499394 in words is "six billion, six hundred twenty-five million, four hundred ninety-nine thousand, three hundred ninety-four".