83390529287 has 32 divisors (see below), whose sum is σ = 92122458624. Its totient is φ = 75017980800.

The previous prime is 83390529283. The next prime is 83390529331. The reversal of 83390529287 is 78292509338.

It is a cyclic number.

It is not a de Polignac number, because 83390529287 - 2² = 83390529283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83390529283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81674837 + ... + 81675857.

It is an arithmetic number, because the mean of its divisors is an integer number (2878826832).

Almost surely, 2^83390529287 is an apocalyptic number.

83390529287 is a deficient number, since it is larger than the sum of its proper divisors (8731929337).

83390529287 is a wasteful number, since it uses less digits than its factorization.

83390529287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 83390529287 in words is "eighty-three billion, three hundred ninety million, five hundred twenty-nine thousand, two hundred eighty-seven".