83774170464 has 48 divisors (see below), whose sum is σ = 220039852032. Its totient is φ = 27907878528.

The previous prime is 83774170463. The next prime is 83774170499. The reversal of 83774170464 is 46407147738.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×83774170464² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83774170463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102724 + ... + 422019.

It is an arithmetic number, because the mean of its divisors is an integer number (4584163584).

Almost surely, 2^83774170464 is an apocalyptic number.

It is an amenable number.

83774170464 is an abundant number, since it is smaller than the sum of its proper divisors (136265681568).

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

83774170464 is a wasteful number, since it uses less digits than its factorization.

83774170464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526419 (or 526411 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 51.

The spelling of 83774170464 in words is "eighty-three billion, seven hundred seventy-four million, one hundred seventy thousand, four hundred sixty-four".