1400884639689 has 4 divisors (see below), whose sum is σ = 1867846186256. Its totient is φ = 933923093124.

The previous prime is 1400884639669. The next prime is 1400884639741. The reversal of 1400884639689 is 9869364880041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1400884639689 - 2²⁴ = 1400867862473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400884639669) 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, 233480773279 + ... + 233480773284.

It is an arithmetic number, because the mean of its divisors is an integer number (466961546564).

Almost surely, 2^{1400884639689} is an apocalyptic number.

It is an amenable number.

1400884639689 is a deficient number, since it is larger than the sum of its proper divisors (466961546567).

1400884639689 is an equidigital number, since it uses as much as digits as its factorization.

1400884639689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466961546566.

The product of its (nonzero) digits is 71663616, while the sum is 66.

The spelling of 1400884639689 in words is "one trillion, four hundred billion, eight hundred eighty-four million, six hundred thirty-nine thousand, six hundred eighty-nine".