1540413314647 has 4 divisors (see below), whose sum is σ = 1541321043696. Its totient is φ = 1539505585600.

The previous prime is 1540413314621. The next prime is 1540413314653. The reversal of 1540413314647 is 7464133140451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1540413314647 - 2³¹ = 1538265830999 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 (1540413314347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453861979 + ... + 453865372.

It is an arithmetic number, because the mean of its divisors is an integer number (385330260924).

Almost surely, 2^{1540413314647} is an apocalyptic number.

1540413314647 is a deficient number, since it is larger than the sum of its proper divisors (907729049).

1540413314647 is an equidigital number, since it uses as much as digits as its factorization.

1540413314647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907729048.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 1540413314647 in words is "one trillion, five hundred forty billion, four hundred thirteen million, three hundred fourteen thousand, six hundred forty-seven".