16403780286 has 40 divisors (see below), whose sum is σ = 36764872320. Its totient is φ = 5466699072.

The previous prime is 16403780279. The next prime is 16403780329. The reversal of 16403780286 is 68208730461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 976470 + ... + 993126.

It is an arithmetic number, because the mean of its divisors is an integer number (919121808).

Almost surely, 2^16403780286 is an apocalyptic number.

16403780286 is an abundant number, since it is smaller than the sum of its proper divisors (20361092034).

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

16403780286 is a wasteful number, since it uses less digits than its factorization.

16403780286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22750 (or 22741 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 16403780286 in words is "sixteen billion, four hundred three million, seven hundred eighty thousand, two hundred eighty-six".