461993078382 has 64 divisors (see below), whose sum is σ = 1061961891840. Its totient is φ = 132513948000.

The previous prime is 461993078321. The next prime is 461993078419. The reversal of 461993078382 is 283870399164.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1283313 + ... + 1603395.

It is an arithmetic number, because the mean of its divisors is an integer number (16593154560).

Almost surely, 2^461993078382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 461993078382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (530980945920).

461993078382 is an abundant number, since it is smaller than the sum of its proper divisors (599968813458).

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

461993078382 is a wasteful number, since it uses less digits than its factorization.

461993078382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321269.

The product of its (nonzero) digits is 15676416, while the sum is 60.

The spelling of 461993078382 in words is "four hundred sixty-one billion, nine hundred ninety-three million, seventy-eight thousand, three hundred eighty-two".