84632640744 has 64 divisors (see below), whose sum is σ = 224514037440. Its totient is φ = 26493762560.

The previous prime is 84632640731. The next prime is 84632640751. The reversal of 84632640744 is 44704623648.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 84632640693 and 84632640702.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36894 + ... + 413069.

It is an arithmetic number, because the mean of its divisors is an integer number (3508031835).

Almost surely, 2^84632640744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84632640744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112257018720).

84632640744 is an abundant number, since it is smaller than the sum of its proper divisors (139881396696).

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

84632640744 is a wasteful number, since it uses less digits than its factorization.

84632640744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450450 (or 450446 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 48.

The spelling of 84632640744 in words is "eighty-four billion, six hundred thirty-two million, six hundred forty thousand, seven hundred forty-four".