1540187880359 has 2 divisors, whose sum is σ = 1540187880360. Its totient is φ = 1540187880358.

The previous prime is 1540187880317. The next prime is 1540187880379. The reversal of 1540187880359 is 9530887810451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1540187880359 - 2³² = 1535892913063 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1540187880298 and 1540187880307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1540187880379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770093940179 + 770093940180.

It is an arithmetic number, because the mean of its divisors is an integer number (770093940180).

Almost surely, 2^{1540187880359} is an apocalyptic number.

1540187880359 is a deficient number, since it is larger than the sum of its proper divisors (1).

1540187880359 is an equidigital number, since it uses as much as digits as its factorization.

1540187880359 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9676800, while the sum is 59.

The spelling of 1540187880359 in words is "one trillion, five hundred forty billion, one hundred eighty-seven million, eight hundred eighty thousand, three hundred fifty-nine".