84258421334 has 4 divisors (see below), whose sum is σ = 126387632004. Its totient is φ = 42129210666.

The previous prime is 84258421279. The next prime is 84258421339. The reversal of 84258421334 is 43312485248.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84258421339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21064605332 + ... + 21064605335.

It is an arithmetic number, because the mean of its divisors is an integer number (31596908001).

Almost surely, 2^84258421334 is an apocalyptic number.

84258421334 is a deficient number, since it is larger than the sum of its proper divisors (42129210670).

84258421334 is a wasteful number, since it uses less digits than its factorization.

84258421334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42129210669.

The product of its digits is 737280, while the sum is 44.

The spelling of 84258421334 in words is "eighty-four billion, two hundred fifty-eight million, four hundred twenty-one thousand, three hundred thirty-four".