140976531648 has 168 divisors, whose sum is σ = 433501220880. Its totient is φ = 45371612160.

The previous prime is 140976531629. The next prime is 140976531659. The reversal of 140976531648 is 846135679041.

140976531648 is a `hidden beast` number, since 1 + 40 + 9 + 7 + 6 + 531 + 64 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 140976531594 and 140976531603.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 294718 + ... + 607298.

It is an arithmetic number, because the mean of its divisors is an integer number (2580364410).

Almost surely, 2^140976531648 is an apocalyptic number.

140976531648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140976531648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216750610440).

140976531648 is an abundant number, since it is smaller than the sum of its proper divisors (292524689232).

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

140976531648 is an equidigital number, since it uses as much as digits as its factorization.

140976531648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312637 (or 312615 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 140976531648 in words is "one hundred forty billion, nine hundred seventy-six million, five hundred thirty-one thousand, six hundred forty-eight".