140690897280 has 192 divisors, whose sum is σ = 486330390000. Its totient is φ = 37478412288.

The previous prime is 140690897267. The next prime is 140690897371. The reversal of 140690897280 is 82798096041.

140690897280 is a `hidden beast` number, since 1 + 406 + 90 + 8 + 9 + 72 + 80 = 666.

140690897280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×140690897280² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 5730471 + ... + 5754969.

Almost surely, 2^140690897280 is an apocalyptic number.

140690897280 is a gapful number since it is divisible by the number (10) 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 140690897280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243165195000).

140690897280 is an abundant number, since it is smaller than the sum of its proper divisors (345639492720).

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

140690897280 is a wasteful number, since it uses less digits than its factorization.

140690897280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25521 (or 25506 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 140690897280 in words is "one hundred forty billion, six hundred ninety million, eight hundred ninety-seven thousand, two hundred eighty".