83767981342 has 4 divisors (see below), whose sum is σ = 125651972016. Its totient is φ = 41883990670.

The previous prime is 83767981313. The next prime is 83767981343. The reversal of 83767981342 is 24318976738.

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

It is a super-2 number, since 2×83767981342² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83767981343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20941995334 + ... + 20941995337.

It is an arithmetic number, because the mean of its divisors is an integer number (31412993004).

Almost surely, 2^83767981342 is an apocalyptic number.

83767981342 is a deficient number, since it is larger than the sum of its proper divisors (41883990674).

83767981342 is a wasteful number, since it uses less digits than its factorization.

83767981342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41883990673.

The product of its digits is 12192768, while the sum is 58.

The spelling of 83767981342 in words is "eighty-three billion, seven hundred sixty-seven million, nine hundred eighty-one thousand, three hundred forty-two".