83492507987 has 4 divisors (see below), whose sum is σ = 95420009136. Its totient is φ = 71565006840.

The previous prime is 83492507977. The next prime is 83492507993. The reversal of 83492507987 is 78970529438.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83492507987 - 2¹⁴ = 83492491603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83492507957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5963750564 + ... + 5963750577.

It is an arithmetic number, because the mean of its divisors is an integer number (23855002284).

Almost surely, 2^83492507987 is an apocalyptic number.

83492507987 is a deficient number, since it is larger than the sum of its proper divisors (11927501149).

83492507987 is a wasteful number, since it uses less digits than its factorization.

83492507987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11927501148.

The product of its (nonzero) digits is 30481920, while the sum is 62.

The spelling of 83492507987 in words is "eighty-three billion, four hundred ninety-two million, five hundred seven thousand, nine hundred eighty-seven".