1546879680 has 392 divisors, whose sum is σ = 5830062000. Its totient is φ = 389670912.

The previous prime is 1546879669. The next prime is 1546879771. The reversal of 1546879680 is 869786451.

1546879680 is a `hidden beast` number, since 1 + 546 + 8 + 7 + 96 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 4432146 + ... + 4432494.

Almost surely, 2^1546879680 is an apocalyptic number.

1546879680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1546879680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2915031000).

1546879680 is an abundant number, since it is smaller than the sum of its proper divisors (4283182320).

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

1546879680 is an equidigital number, since it uses as much as digits as its factorization.

1546879680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 1546879680 is about 39330.3913024013. The cubic root of 1546879680 is about 1156.5174186236.

The spelling of 1546879680 in words is "one billion, five hundred forty-six million, eight hundred seventy-nine thousand, six hundred eighty".