11287047860 has 24 divisors (see below), whose sum is σ = 25857601056. Its totient is φ = 4104380960.

The previous prime is 11287047857. The next prime is 11287047887. The reversal of 11287047860 is 6874078211.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25652162 + ... + 25652601.

It is an arithmetic number, because the mean of its divisors is an integer number (1077400044).

Almost surely, 2^11287047860 is an apocalyptic number.

11287047860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11287047860 is an abundant number, since it is smaller than the sum of its proper divisors (14570553196).

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

11287047860 is a wasteful number, since it uses less digits than its factorization.

11287047860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51304783 (or 51304781 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 44.

The spelling of 11287047860 in words is "eleven billion, two hundred eighty-seven million, forty-seven thousand, eight hundred sixty".