140736868480 has 64 divisors (see below), whose sum is σ = 362329795800. Its totient is φ = 51964379136.

The previous prime is 140736868471. The next prime is 140736868483. The reversal of 140736868480 is 84868637041.

It can be written as a sum of positive squares in 4 ways, for example, as 60276142144 + 80460726336 = 245512^2 + 283656^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×140736868480² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140736868483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8449425 + ... + 8466064.

Almost surely, 2^140736868480 is an apocalyptic number.

140736868480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140736868480 is an abundant number, since it is smaller than the sum of its proper divisors (221592927320).

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

140736868480 is a wasteful number, since it uses less digits than its factorization.

140736868480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16915521 (or 16915509 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 140736868480 in words is "one hundred forty billion, seven hundred thirty-six million, eight hundred sixty-eight thousand, four hundred eighty".