140563128556478 has 16 divisors (see below), whose sum is σ = 221370650228880. Its totient is φ = 66845255163456.

The previous prime is 140563128556469. The next prime is 140563128556493. The reversal of 140563128556478 is 874655821365041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18085833551 + ... + 18085841322.

It is an arithmetic number, because the mean of its divisors is an integer number (13835665639305).

Almost surely, 2^{140563128556478} is an apocalyptic number.

140563128556478 is a deficient number, since it is larger than the sum of its proper divisors (80807521672402).

140563128556478 is a wasteful number, since it uses less digits than its factorization.

140563128556478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36171674971.

The product of its (nonzero) digits is 193536000, while the sum is 65.

The spelling of 140563128556478 in words is "one hundred forty trillion, five hundred sixty-three billion, one hundred twenty-eight million, five hundred fifty-six thousand, four hundred seventy-eight".