634782321948 has 48 divisors (see below), whose sum is σ = 1565042814720. Its totient is φ = 199695360384.

The previous prime is 634782321931. The next prime is 634782321949. The reversal of 634782321948 is 849123287436.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634782321949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5233065 + ... + 5352992.

It is an arithmetic number, because the mean of its divisors is an integer number (32605058640).

Almost surely, 2^634782321948 is an apocalyptic number.

It is an amenable number.

634782321948 is an abundant number, since it is smaller than the sum of its proper divisors (930260492772).

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

634782321948 is a wasteful number, since it uses less digits than its factorization.

634782321948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10586346 (or 10586344 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 57.

The spelling of 634782321948 in words is "six hundred thirty-four billion, seven hundred eighty-two million, three hundred twenty-one thousand, nine hundred forty-eight".