8461378884 has 48 divisors (see below), whose sum is σ = 22570475648. Its totient is φ = 2416808448.

The previous prime is 8461378847. The next prime is 8461378951. The reversal of 8461378884 is 4888731648.

It is a happy number.

It is a super-3 number, since 3×8461378884³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305334 + ... + 331890.

Almost surely, 2^8461378884 is an apocalyptic number.

8461378884 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

8461378884 is an abundant number, since it is smaller than the sum of its proper divisors (14109096764).

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

8461378884 is a wasteful number, since it uses less digits than its factorization.

8461378884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30364 (or 30362 counting only the distinct ones).

The product of its digits is 8257536, while the sum is 57.

The square root of 8461378884 is about 91985.7537013205. The cubic root of 8461378884 is about 2037.7319150572.

The spelling of 8461378884 in words is "eight billion, four hundred sixty-one million, three hundred seventy-eight thousand, eight hundred eighty-four".