83484237140 has 24 divisors (see below), whose sum is σ = 175326861192. Its totient is φ = 33391797120.

The previous prime is 83484237131. The next prime is 83484237149. The reversal of 83484237140 is 4173248438.

It is an interprime number because it is at equal distance from previous prime (83484237131) and next prime (83484237149).

It can be written as a sum of positive squares in 4 ways, for example, as 22969221136 + 60515016004 = 151556^2 + 245998^2 .

It is a junction number, because it is equal to n+sod(n) for n = 83484237091 and 83484237100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83484237149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273782 + ... + 491858.

It is an arithmetic number, because the mean of its divisors is an integer number (7305285883).

Almost surely, 2^83484237140 is an apocalyptic number.

It is an amenable number.

83484237140 is an abundant number, since it is smaller than the sum of its proper divisors (91842624052).

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

83484237140 is a wasteful number, since it uses less digits than its factorization.

83484237140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237227 (or 237225 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 44.

The spelling of 83484237140 in words is "eighty-three billion, four hundred eighty-four million, two hundred thirty-seven thousand, one hundred forty".