83461276640 has 72 divisors (see below), whose sum is σ = 229369494312. Its totient is φ = 28615292160.

The previous prime is 83461276627. The next prime is 83461276643. The reversal of 83461276640 is 4667216438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83461276643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5314946 + ... + 5330625.

It is an arithmetic number, because the mean of its divisors is an integer number (3185687421).

Almost surely, 2^83461276640 is an apocalyptic number.

83461276640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

83461276640 is an abundant number, since it is smaller than the sum of its proper divisors (145908217672).

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

83461276640 is a wasteful number, since it uses less digits than its factorization.

83461276640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10645600 (or 10645585 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 47.

The spelling of 83461276640 in words is "eighty-three billion, four hundred sixty-one million, two hundred seventy-six thousand, six hundred forty".