11387221870 has 8 divisors (see below), whose sum is σ = 20496999384. Its totient is φ = 4554888744.

The previous prime is 11387221799. The next prime is 11387221883. The reversal of 11387221870 is 7812278311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 569361084 + ... + 569361103.

It is an arithmetic number, because the mean of its divisors is an integer number (2562124923).

Almost surely, 2^11387221870 is an apocalyptic number.

11387221870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11387221870 is a deficient number, since it is larger than the sum of its proper divisors (9109777514).

11387221870 is a wasteful number, since it uses less digits than its factorization.

11387221870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138722194.

The product of its (nonzero) digits is 37632, while the sum is 40.

The spelling of 11387221870 in words is "eleven billion, three hundred eighty-seven million, two hundred twenty-one thousand, eight hundred seventy".