2086687421534 has 16 divisors (see below), whose sum is σ = 3132439173600. Its totient is φ = 1042541246304.

The previous prime is 2086687421513. The next prime is 2086687421549. The reversal of 2086687421534 is 4351247866802.

It is a self number, because there is not a number n which added to its sum of digits gives 2086687421534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20802452 + ... + 20902520.

It is an arithmetic number, because the mean of its divisors is an integer number (195777448350).

Almost surely, 2^{2086687421534} is an apocalyptic number.

2086687421534 is a deficient number, since it is larger than the sum of its proper divisors (1045751752066).

2086687421534 is a wasteful number, since it uses less digits than its factorization.

2086687421534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107987.

The product of its (nonzero) digits is 15482880, while the sum is 56.

The spelling of 2086687421534 in words is "two trillion, eighty-six billion, six hundred eighty-seven million, four hundred twenty-one thousand, five hundred thirty-four".