83511460640 has 48 divisors (see below), whose sum is σ = 199211358528. Its totient is φ = 33080261376.

The previous prime is 83511460609. The next prime is 83511460693. The reversal of 83511460640 is 4606411538.

It is a junction number, because it is equal to n+sod(n) for n = 83511460594 and 83511460603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2517242 + ... + 2550201.

It is an arithmetic number, because the mean of its divisors is an integer number (4150236636).

Almost surely, 2^83511460640 is an apocalyptic number.

83511460640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

83511460640 is an abundant number, since it is smaller than the sum of its proper divisors (115699897888).

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

83511460640 is a wasteful number, since it uses less digits than its factorization.

83511460640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5067561 (or 5067553 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 83511460640 in words is "eighty-three billion, five hundred eleven million, four hundred sixty thousand, six hundred forty".