140647092681 has 32 divisors (see below), whose sum is σ = 200640423168. Its totient is φ = 87327313920.

The previous prime is 140647092679. The next prime is 140647092731. The reversal of 140647092681 is 186290746041.

It is not a de Polignac number, because 140647092681 - 2¹ = 140647092679 is a prime.

It is a super-2 number, since 2×140647092681² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140647092681.

It is not an unprimeable number, because it can be changed into a prime (140647092611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3617115 + ... + 3655791.

It is an arithmetic number, because the mean of its divisors is an integer number (6270013224).

Almost surely, 2^140647092681 is an apocalyptic number.

It is an amenable number.

140647092681 is a deficient number, since it is larger than the sum of its proper divisors (59993330487).

140647092681 is a wasteful number, since it uses less digits than its factorization.

140647092681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39441.

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 140647092681 in words is "one hundred forty billion, six hundred forty-seven million, ninety-two thousand, six hundred eighty-one".