1540377314443 has 32 divisors (see below), whose sum is σ = 1717061359104. Its totient is φ = 1370134080000.

The previous prime is 1540377314423. The next prime is 1540377314461. The reversal of 1540377314443 is 3444137730451.

It is a cyclic number.

It is not a de Polignac number, because 1540377314443 - 2⁹ = 1540377313931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1540377314393 and 1540377314402.

It is not an unprimeable number, because it can be changed into a prime (1540377314423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69397155 + ... + 69419347.

It is an arithmetic number, because the mean of its divisors is an integer number (53658167472).

Almost surely, 2^{1540377314443} is an apocalyptic number.

1540377314443 is a deficient number, since it is larger than the sum of its proper divisors (176684044661).

1540377314443 is a wasteful number, since it uses less digits than its factorization.

1540377314443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22947.

The product of its (nonzero) digits is 1693440, while the sum is 46.

The spelling of 1540377314443 in words is "one trillion, five hundred forty billion, three hundred seventy-seven million, three hundred fourteen thousand, four hundred forty-three".