6419978232 has 32 divisors (see below), whose sum is σ = 16567687680. Its totient is φ = 2070960480.

The previous prime is 6419978221. The next prime is 6419978237. The reversal of 6419978232 is 2328799146.

It is a super-2 number, since 2×6419978232² = 82432240998707691648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6419978237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4313758 + ... + 4315245.

It is an arithmetic number, because the mean of its divisors is an integer number (517740240).

Almost surely, 2^6419978232 is an apocalyptic number.

6419978232 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

6419978232 is an abundant number, since it is smaller than the sum of its proper divisors (10147709448).

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

6419978232 is a wasteful number, since it uses less digits than its factorization.

6419978232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8629043 (or 8629039 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The square root of 6419978232 is about 80124.7666580066. The cubic root of 6419978232 is about 1858.5654171153.

The spelling of 6419978232 in words is "six billion, four hundred nineteen million, nine hundred seventy-eight thousand, two hundred thirty-two".