11898772480 has 88 divisors (see below), whose sum is σ = 32620795488. Its totient is φ = 4079566848.

The previous prime is 11898772463. The next prime is 11898772499. The reversal of 11898772480 is 8427789811.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130159 + ... + 201838.

Almost surely, 2^11898772480 is an apocalyptic number.

11898772480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11898772480 is an abundant number, since it is smaller than the sum of its proper divisors (20722023008).

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

11898772480 is an equidigital number, since it uses as much as digits as its factorization.

11898772480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332029 (or 332011 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 55.

It can be divided in two parts, 11898 and 772480, that added together give a triangular number (784378 = T₁₂₅₂).

The spelling of 11898772480 in words is "eleven billion, eight hundred ninety-eight million, seven hundred seventy-two thousand, four hundred eighty".