6442371954 has 24 divisors (see below), whose sum is σ = 14003080572. Its totient is φ = 2140594560.

The previous prime is 6442371913. The next prime is 6442371959. The reversal of 6442371954 is 4591732446.

It can be written as a sum of positive squares in 2 ways, for example, as 6387685929 + 54686025 = 79923^2 + 7395^2 .

It is a super-3 number, since 3×6442371954³ (a number of 30 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6442371959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 566107 + ... + 577374.

Almost surely, 2^6442371954 is an apocalyptic number.

6442371954 is an abundant number, since it is smaller than the sum of its proper divisors (7560708618).

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

6442371954 is a wasteful number, since it uses less digits than its factorization.

6442371954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143802 (or 1143799 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 6442371954 is about 80264.3878317153. The cubic root of 6442371954 is about 1860.7238823052.

The spelling of 6442371954 in words is "six billion, four hundred forty-two million, three hundred seventy-one thousand, nine hundred fifty-four".