83780237634 has 8 divisors (see below), whose sum is σ = 167560475280. Its totient is φ = 27926745876.

The previous prime is 83780237509. The next prime is 83780237663. The reversal of 83780237634 is 43673208738.

It is a sphenic number, since it is the product of 3 distinct primes.

83780237634 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6981686464 + ... + 6981686475.

It is an arithmetic number, because the mean of its divisors is an integer number (20945059410).

Almost surely, 2^83780237634 is an apocalyptic number.

83780237634 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

83780237634 is a wasteful number, since it uses less digits than its factorization.

83780237634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13963372944.

The product of its (nonzero) digits is 4064256, while the sum is 51.

The spelling of 83780237634 in words is "eighty-three billion, seven hundred eighty million, two hundred thirty-seven thousand, six hundred thirty-four".