1400058997681 has 4 divisors (see below), whose sum is σ = 1402388547364. Its totient is φ = 1397729448000.

The previous prime is 1400058997661. The next prime is 1400058997699. The reversal of 1400058997681 is 1867998500041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 506778829456 + 893280168225 = 711884^2 + 945135^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400058997681 - 2¹¹ = 1400058995633 is a prime.

It is a super-2 number, since 2×1400058997681² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400058997661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1164773940 + ... + 1164775141.

It is an arithmetic number, because the mean of its divisors is an integer number (350597136841).

Almost surely, 2^{1400058997681} is an apocalyptic number.

It is an amenable number.

1400058997681 is a deficient number, since it is larger than the sum of its proper divisors (2329549683).

1400058997681 is an equidigital number, since it uses as much as digits as its factorization.

1400058997681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329549682.

The product of its (nonzero) digits is 4354560, while the sum is 58.

The spelling of 1400058997681 in words is "one trillion, four hundred billion, fifty-eight million, nine hundred ninety-seven thousand, six hundred eighty-one".