84623923240 has 32 divisors (see below), whose sum is σ = 190420031880. Its totient is φ = 33846688512.

The previous prime is 84623923213. The next prime is 84623923247. The reversal of 84623923240 is 4232932648.

It can be written as a sum of positive squares in 4 ways, for example, as 71266573764 + 13357349476 = 266958^2 + 115574^2 .

It is a super-2 number, since 2×84623923240² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84623923247) 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 7 ways as a sum of consecutive naturals, for example, 421774 + ... + 589186.

Almost surely, 2^84623923240 is an apocalyptic number.

It is an amenable number.

84623923240 is an abundant number, since it is smaller than the sum of its proper divisors (105796108640).

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

84623923240 is a wasteful number, since it uses less digits than its factorization.

84623923240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180061 (or 180057 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 84623923240 in words is "eighty-four billion, six hundred twenty-three million, nine hundred twenty-three thousand, two hundred forty".