87845472037 has 2 divisors, whose sum is σ = 87845472038. Its totient is φ = 87845472036.

The previous prime is 87845471977. The next prime is 87845472089. The reversal of 87845472037 is 73027454878.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64153797796 + 23691674241 = 253286^2 + 153921^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87845472037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87845479037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43922736018 + 43922736019.

It is an arithmetic number, because the mean of its divisors is an integer number (43922736019).

Almost surely, 2^87845472037 is an apocalyptic number.

It is an amenable number.

87845472037 is a deficient number, since it is larger than the sum of its proper divisors (1).

87845472037 is an equidigital number, since it uses as much as digits as its factorization.

87845472037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10536960, while the sum is 55.

The spelling of 87845472037 in words is "eighty-seven billion, eight hundred forty-five million, four hundred seventy-two thousand, thirty-seven".