83187758520020 has 48 divisors (see below), whose sum is σ = 217800676856448. Its totient is φ = 25928652005760.

The previous prime is 83187758519911. The next prime is 83187758520029. The reversal of 83187758520020 is 2002585778138.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83187758520029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27009010967 + ... + 27009014046.

It is an arithmetic number, because the mean of its divisors is an integer number (4537514101176).

Almost surely, 2^{83187758520020} is an apocalyptic number.

It is an amenable number.

83187758520020 is an abundant number, since it is smaller than the sum of its proper divisors (134612918336428).

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

83187758520020 is a wasteful number, since it uses less digits than its factorization.

83187758520020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54018025040 (or 54018025038 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 56.

The spelling of 83187758520020 in words is "eighty-three trillion, one hundred eighty-seven billion, seven hundred fifty-eight million, five hundred twenty thousand, twenty".