140217428857456 has 20 divisors (see below), whose sum is σ = 274308853544752. Its totient is φ = 69428047297536.

The previous prime is 140217428857423. The next prime is 140217428857477. The reversal of 140217428857456 is 654758824712041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42541694001 + ... + 42541697296.

Almost surely, 2^{140217428857456} is an apocalyptic number.

140217428857456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

140217428857456 is a deficient number, since it is larger than the sum of its proper divisors (134091424687296).

140217428857456 is a wasteful number, since it uses less digits than its factorization.

140217428857456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85083391408 (or 85083391402 counting only the distinct ones).

The product of its (nonzero) digits is 120422400, while the sum is 64.

The spelling of 140217428857456 in words is "one hundred forty trillion, two hundred seventeen billion, four hundred twenty-eight million, eight hundred fifty-seven thousand, four hundred fifty-six".