6451899652 has 12 divisors (see below), whose sum is σ = 12317263056. Its totient is φ = 2932681640.

The previous prime is 6451899637. The next prime is 6451899659. The reversal of 6451899652 is 2569981546.

It is a super-2 number, since 2×6451899652² = 83254018238955442208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6451899593 and 6451899602.

It is not an unprimeable number, because it can be changed into a prime (6451899659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73316998 + ... + 73317085.

It is an arithmetic number, because the mean of its divisors is an integer number (1026438588).

Almost surely, 2^6451899652 is an apocalyptic number.

It is an amenable number.

6451899652 is a deficient number, since it is larger than the sum of its proper divisors (5865363404).

6451899652 is a wasteful number, since it uses less digits than its factorization.

6451899652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146634098 (or 146634096 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 55.

The square root of 6451899652 is about 80323.7178671406. The cubic root of 6451899652 is about 1861.6407124689.

The spelling of 6451899652 in words is "six billion, four hundred fifty-one million, eight hundred ninety-nine thousand, six hundred fifty-two".