1544405051340 has 72 divisors (see below), whose sum is σ = 4748869271328. Its totient is φ = 406199681280.

The previous prime is 1544405051339. The next prime is 1544405051341. The reversal of 1544405051340 is 431505044451.

1544405051340 is a `hidden beast` number, since 1 + 54 + 4 + 4 + 0 + 50 + 513 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (1544405051339) and next prime (1544405051341).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1544405051295 and 1544405051304.

It is not an unprimeable number, because it can be changed into a prime (1544405051341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58754176 + ... + 58780455.

Almost surely, 2^{1544405051340} is an apocalyptic number.

1544405051340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1544405051340 is an abundant number, since it is smaller than the sum of its proper divisors (3204464219988).

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

1544405051340 is a wasteful number, since it uses less digits than its factorization.

1544405051340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117534719 (or 117534714 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 1544405051340 in words is "one trillion, five hundred forty-four billion, four hundred five million, fifty-one thousand, three hundred forty".