1426387400564 has 48 divisors (see below), whose sum is σ = 2890127278080. Its totient is φ = 603311436000.

The previous prime is 1426387400551. The next prime is 1426387400567. The reversal of 1426387400564 is 4650047836241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426387400567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5054189 + ... + 5328939.

It is an arithmetic number, because the mean of its divisors is an integer number (60210984960).

Almost surely, 2^{1426387400564} is an apocalyptic number.

1426387400564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1426387400564 is an abundant number, since it is smaller than the sum of its proper divisors (1463739877516).

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

1426387400564 is a wasteful number, since it uses less digits than its factorization.

1426387400564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277188 (or 277186 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 50.

The spelling of 1426387400564 in words is "one trillion, four hundred twenty-six billion, three hundred eighty-seven million, four hundred thousand, five hundred sixty-four".