87761271774 has 16 divisors (see below), whose sum is σ = 191479138560. Its totient is φ = 26594324760.

The previous prime is 87761271749. The next prime is 87761271881. The reversal of 87761271774 is 47717216778.

It is a happy number.

It is a Curzon number.

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, 664858054 + ... + 664858185.

It is an arithmetic number, because the mean of its divisors is an integer number (11967446160).

Almost surely, 2^87761271774 is an apocalyptic number.

87761271774 is an abundant number, since it is smaller than the sum of its proper divisors (103717866786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87761271774 is a wasteful number, since it uses less digits than its factorization.

87761271774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329716255.

The product of its digits is 6453888, while the sum is 57.

The spelling of 87761271774 in words is "eighty-seven billion, seven hundred sixty-one million, two hundred seventy-one thousand, seven hundred seventy-four".