87432899012 has 24 divisors (see below), whose sum is σ = 157430014560. Its totient is φ = 42462290240.

The previous prime is 87432899011. The next prime is 87432899017. The reversal of 87432899012 is 21099823478.

It is a super-2 number, since 2×87432899012² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87432899011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1137062 + ... + 1211517.

It is an arithmetic number, because the mean of its divisors is an integer number (6559583940).

Almost surely, 2^87432899012 is an apocalyptic number.

87432899012 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

87432899012 is a deficient number, since it is larger than the sum of its proper divisors (69997115548).

87432899012 is a wasteful number, since it uses less digits than its factorization.

87432899012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348851 (or 2348849 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 87432899012 in words is "eighty-seven billion, four hundred thirty-two million, eight hundred ninety-nine thousand, twelve".