140256478260 has 120 divisors (see below), whose sum is σ = 446017400136. Its totient is φ = 36889344000.

The previous prime is 140256478249. The next prime is 140256478267. The reversal of 140256478260 is 62874652041.

140256478260 is a `hidden beast` number, since 1 + 4 + 0 + 2 + 564 + 7 + 82 + 6 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 236196 + 140256242064 = 486^2 + 374508^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140256478267) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 474741 + ... + 711260.

Almost surely, 2^140256478260 is an apocalyptic number.

140256478260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140256478260 is an abundant number, since it is smaller than the sum of its proper divisors (305760921876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140256478260 is a wasteful number, since it uses less digits than its factorization.

140256478260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186095 (or 1186084 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 140256478260 in words is "one hundred forty billion, two hundred fifty-six million, four hundred seventy-eight thousand, two hundred sixty".