6451901942 has 16 divisors (see below), whose sum is σ = 9920997072. Its totient is φ = 3145015680.

The previous prime is 6451901921. The next prime is 6451901977. The reversal of 6451901942 is 2491091546.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 6451901942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90053 + ... + 144959.

It is an arithmetic number, because the mean of its divisors is an integer number (620062317).

Almost surely, 2^6451901942 is an apocalyptic number.

6451901942 is a deficient number, since it is larger than the sum of its proper divisors (3469095130).

6451901942 is a wasteful number, since it uses less digits than its factorization.

6451901942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56383.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 6451901942 is about 80323.7321219576. The cubic root of 6451901942 is about 1861.6409327222.

The spelling of 6451901942 in words is "six billion, four hundred fifty-one million, nine hundred one thousand, nine hundred forty-two".