84623331540 has 48 divisors (see below), whose sum is σ = 258485814720. Its totient is φ = 20514746880.

The previous prime is 84623331511. The next prime is 84623331547. The reversal of 84623331540 is 4513332648.

It is a super-2 number, since 2×84623331540² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84623331547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64107925 + ... + 64109244.

It is an arithmetic number, because the mean of its divisors is an integer number (5385121140).

Almost surely, 2^84623331540 is an apocalyptic number.

It is an amenable number.

84623331540 is an abundant number, since it is smaller than the sum of its proper divisors (173862483180).

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

84623331540 is a wasteful number, since it uses less digits than its factorization.

84623331540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128217192 (or 128217190 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 84623331540 in words is "eighty-four billion, six hundred twenty-three million, three hundred thirty-one thousand, five hundred forty".