1400889589639 has 8 divisors (see below), whose sum is σ = 1409461925760. Its totient is φ = 1392319441656.

The previous prime is 1400889589613. The next prime is 1400889589679. The reversal of 1400889589639 is 9369859880041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400889589639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400889589679) 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, 746652 + ... + 1832830.

It is an arithmetic number, because the mean of its divisors is an integer number (176182740720).

Almost surely, 2^{1400889589639} is an apocalyptic number.

1400889589639 is a deficient number, since it is larger than the sum of its proper divisors (8572336121).

1400889589639 is a wasteful number, since it uses less digits than its factorization.

1400889589639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094069.

The product of its (nonzero) digits is 134369280, while the sum is 70.

The spelling of 1400889589639 in words is "one trillion, four hundred billion, eight hundred eighty-nine million, five hundred eighty-nine thousand, six hundred thirty-nine".