1401247560487 has 2 divisors, whose sum is σ = 1401247560488. Its totient is φ = 1401247560486.

The previous prime is 1401247560473. The next prime is 1401247560491. The reversal of 1401247560487 is 7840657421041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1401247560487 - 2⁷ = 1401247560359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1401247560487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401247560787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700623780243 + 700623780244.

It is an arithmetic number, because the mean of its divisors is an integer number (700623780244).

Almost surely, 2^{1401247560487} is an apocalyptic number.

1401247560487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401247560487 is an equidigital number, since it uses as much as digits as its factorization.

1401247560487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 1401247560487 in words is "one trillion, four hundred one billion, two hundred forty-seven million, five hundred sixty thousand, four hundred eighty-seven".