84505743642 has 32 divisors (see below), whose sum is σ = 178828672320. Its totient is φ = 26547747840.

The previous prime is 84505743617. The next prime is 84505743667. The reversal of 84505743642 is 24634750548.

It is an interprime number because it is at equal distance from previous prime (84505743617) and next prime (84505743667).

It is a junction number, because it is equal to n+sod(n) for n = 84505743591 and 84505743600.

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, 1898409 + ... + 1942412.

It is an arithmetic number, because the mean of its divisors is an integer number (5588396010).

Almost surely, 2^84505743642 is an apocalyptic number.

84505743642 is an abundant number, since it is smaller than the sum of its proper divisors (94322928678).

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

84505743642 is a wasteful number, since it uses less digits than its factorization.

84505743642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3841038.

The product of its (nonzero) digits is 3225600, while the sum is 48.

The spelling of 84505743642 in words is "eighty-four billion, five hundred five million, seven hundred forty-three thousand, six hundred forty-two".