1400344266654 has 24 divisors (see below), whose sum is σ = 3116081387640. Its totient is φ = 454165707888.

The previous prime is 1400344266611. The next prime is 1400344266709. The reversal of 1400344266654 is 4566624430041.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1051308844 + ... + 1051310175.

It is an arithmetic number, because the mean of its divisors is an integer number (129836724485).

Almost surely, 2^{1400344266654} is an apocalyptic number.

1400344266654 is an abundant number, since it is smaller than the sum of its proper divisors (1715737120986).

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

1400344266654 is a wasteful number, since it uses less digits than its factorization.

1400344266654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102619064 (or 2102619061 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 45.

Adding to 1400344266654 its reverse (4566624430041), we get a palindrome (5966968696695).

The spelling of 1400344266654 in words is "one trillion, four hundred billion, three hundred forty-four million, two hundred sixty-six thousand, six hundred fifty-four".