140400767940889 has 9 divisors (see below), whose sum is σ = 140711460080479. Its totient is φ = 140090760382360.

The previous prime is 140400767940857. The next prime is 140400767940931. The reversal of 140400767940889 is 988049767004041.

The square root of 140400767940889 is 11849083.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 45003744161289 + 95397023779600 = 6708483^2 + 9767140^2 .

It is not a de Polignac number, because 140400767940889 - 2⁵ = 140400767940857 is a prime.

It is a super-2 number, since 2×140400767940889² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140400767910889) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5462414412 + ... + 5462440114.

Almost surely, 2^{140400767940889} is an apocalyptic number.

140400767940889 is the 11849083-rd square number.

140400767940889 is the 5924542-nd centered octagonal number.

It is an amenable number.

140400767940889 is a deficient number, since it is larger than the sum of its proper divisors (310692139590).

140400767940889 is an frugal number, since it uses more digits than its factorization.

140400767940889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52328 (or 26164 counting only the distinct ones).

The product of its (nonzero) digits is 97542144, while the sum is 67.

The spelling of 140400767940889 in words is "one hundred forty trillion, four hundred billion, seven hundred sixty-seven million, nine hundred forty thousand, eight hundred eighty-nine".