8447257482142 has 4 divisors (see below), whose sum is σ = 12670886223216. Its totient is φ = 4223628741070.

The previous prime is 8447257482107. The next prime is 8447257482193. The reversal of 8447257482142 is 2412847527448.

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, 2111814370534 + ... + 2111814370537.

It is an arithmetic number, because the mean of its divisors is an integer number (3167721555804).

Almost surely, 2^{8447257482142} is an apocalyptic number.

8447257482142 is a deficient number, since it is larger than the sum of its proper divisors (4223628741074).

8447257482142 is a wasteful number, since it uses less digits than its factorization.

8447257482142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4223628741073.

The product of its digits is 32112640, while the sum is 58.

The spelling of 8447257482142 in words is "eight trillion, four hundred forty-seven billion, two hundred fifty-seven million, four hundred eighty-two thousand, one hundred forty-two".