84180825037 has 2 divisors, whose sum is σ = 84180825038. Its totient is φ = 84180825036.

The previous prime is 84180825031. The next prime is 84180825061. The reversal of 84180825037 is 73052808148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43709846761 + 40470978276 = 209069^2 + 201174^2 .

It is a cyclic number.

It is not a de Polignac number, because 84180825037 - 2²³ = 84172436429 is a prime.

It is a super-2 number, since 2×84180825037² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84180825031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42090412518 + 42090412519.

It is an arithmetic number, because the mean of its divisors is an integer number (42090412519).

Almost surely, 2^84180825037 is an apocalyptic number.

It is an amenable number.

84180825037 is a deficient number, since it is larger than the sum of its proper divisors (1).

84180825037 is an equidigital number, since it uses as much as digits as its factorization.

84180825037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 430080, while the sum is 46.

The spelling of 84180825037 in words is "eighty-four billion, one hundred eighty million, eight hundred twenty-five thousand, thirty-seven".