6432746880 has 128 divisors (see below), whose sum is σ = 23433626880. Its totient is φ = 1470339072.

The previous prime is 6432746821. The next prime is 6432746893. The reversal of 6432746880 is 886472346.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225874 + ... + 252753.

It is an arithmetic number, because the mean of its divisors is an integer number (183075210).

Almost surely, 2^6432746880 is an apocalyptic number.

6432746880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6432746880 is an abundant number, since it is smaller than the sum of its proper divisors (17000880000).

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

6432746880 is a wasteful number, since it uses less digits than its factorization.

6432746880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478656 (or 478644 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 48.

The square root of 6432746880 is about 80204.4068614687. The cubic root of 6432746880 is about 1859.7967635494.

The spelling of 6432746880 in words is "six billion, four hundred thirty-two million, seven hundred forty-six thousand, eight hundred eighty".