1390146886487 has 4 divisors (see below), whose sum is σ = 1393545779040. Its totient is φ = 1386747993936.

The previous prime is 1390146886483. The next prime is 1390146886511. The reversal of 1390146886487 is 7846886410931.

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 1390146886487 - 2² = 1390146886483 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 (1390146886483) 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, 1699445663 + ... + 1699446480.

It is an arithmetic number, because the mean of its divisors is an integer number (348386444760).

Almost surely, 2^{1390146886487} is an apocalyptic number.

1390146886487 is a deficient number, since it is larger than the sum of its proper divisors (3398892553).

1390146886487 is an equidigital number, since it uses as much as digits as its factorization.

1390146886487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398892552.

The product of its (nonzero) digits is 55738368, while the sum is 65.

The spelling of 1390146886487 in words is "one trillion, three hundred ninety billion, one hundred forty-six million, eight hundred eighty-six thousand, four hundred eighty-seven".