6135999394 has 32 divisors (see below), whose sum is σ = 11060006400. Its totient is φ = 2497400640.

The previous prime is 6135999391. The next prime is 6135999407. The reversal of 6135999394 is 4939995316.

6135999394 = 14532² + 14533² + ... + 14560².

It is a Harshad number since it is a multiple of its sum of digits (58).

It is not an unprimeable number, because it can be changed into a prime (6135999391) 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, 99114 + ... + 148645.

It is an arithmetic number, because the mean of its divisors is an integer number (345625200).

Almost surely, 2^6135999394 is an apocalyptic number.

6135999394 is a deficient number, since it is larger than the sum of its proper divisors (4924007006).

6135999394 is a wasteful number, since it uses less digits than its factorization.

6135999394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247858.

The product of its digits is 7085880, while the sum is 58.

The square root of 6135999394 is about 78332.6202421443. The cubic root of 6135999394 is about 1830.7474420940.

The spelling of 6135999394 in words is "six billion, one hundred thirty-five million, nine hundred ninety-nine thousand, three hundred ninety-four".