10780884515 has 4 divisors (see below), whose sum is σ = 12937061424. Its totient is φ = 8624707608.

The previous prime is 10780884493. The next prime is 10780884529. The reversal of 10780884515 is 51548808701.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10780884515 - 2¹² = 10780880419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10780884515.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1078088447 + ... + 1078088456.

It is an arithmetic number, because the mean of its divisors is an integer number (3234265356).

Almost surely, 2^10780884515 is an apocalyptic number.

10780884515 is a deficient number, since it is larger than the sum of its proper divisors (2156176909).

10780884515 is an equidigital number, since it uses as much as digits as its factorization.

10780884515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156176908.

The product of its (nonzero) digits is 358400, while the sum is 47.

The spelling of 10780884515 in words is "ten billion, seven hundred eighty million, eight hundred eighty-four thousand, five hundred fifteen".