6451501356 has 72 divisors (see below), whose sum is σ = 17073791280. Its totient is φ = 2051301504.

The previous prime is 6451501339. The next prime is 6451501361. The reversal of 6451501356 is 6531051546.

6451501356 is a `hidden beast` number, since 6 + 4 + 515 + 0 + 135 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 6451501356.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49426 + ... + 123878.

It is an arithmetic number, because the mean of its divisors is an integer number (237135990).

Almost surely, 2^6451501356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6451501356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8536895640).

6451501356 is an abundant number, since it is smaller than the sum of its proper divisors (10622289924).

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

6451501356 is a wasteful number, since it uses less digits than its factorization.

6451501356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74575 (or 74570 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 6451501356 is about 80321.2385113676. The cubic root of 6451501356 is about 1861.6024033741.

The spelling of 6451501356 in words is "six billion, four hundred fifty-one million, five hundred one thousand, three hundred fifty-six".