87467047137982 has 4 divisors (see below), whose sum is σ = 131200570706976. Its totient is φ = 43733523568990.

The previous prime is 87467047137959. The next prime is 87467047138019. The reversal of 87467047137982 is 28973174076478.

It is a happy number.

It is a semiprime because it is the product of two primes.

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, 21866761784494 + ... + 21866761784497.

It is an arithmetic number, because the mean of its divisors is an integer number (32800142676744).

Almost surely, 2^{87467047137982} is an apocalyptic number.

87467047137982 is a deficient number, since it is larger than the sum of its proper divisors (43733523568994).

87467047137982 is a wasteful number, since it uses less digits than its factorization.

87467047137982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43733523568993.

The product of its (nonzero) digits is 796594176, while the sum is 73.

The spelling of 87467047137982 in words is "eighty-seven trillion, four hundred sixty-seven billion, forty-seven million, one hundred thirty-seven thousand, nine hundred eighty-two".