30081381976 has 8 divisors (see below), whose sum is σ = 56402591220. Its totient is φ = 15040690984.

The previous prime is 30081381961. The next prime is 30081382007. The reversal of 30081381976 is 67918318003.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1880086366 + ... + 1880086381.

Almost surely, 2^30081381976 is an apocalyptic number.

It is an amenable number.

30081381976 is a deficient number, since it is larger than the sum of its proper divisors (26321209244).

30081381976 is a wasteful number, since it uses less digits than its factorization.

30081381976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3760172753 (or 3760172749 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

Adding to 30081381976 its reverse (67918318003), we get a palindrome (97999699979).

The spelling of 30081381976 in words is "thirty billion, eighty-one million, three hundred eighty-one thousand, nine hundred seventy-six".