87734391654 has 64 divisors (see below), whose sum is σ = 216430663680. Its totient is φ = 23088481920.

The previous prime is 87734391653. The next prime is 87734391671. The reversal of 87734391654 is 45619343778.

It is a junction number, because it is equal to n+sod(n) for n = 87734391594 and 87734391603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87734391653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77427 + ... + 425985.

It is an arithmetic number, because the mean of its divisors is an integer number (3381729120).

Almost surely, 2^87734391654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87734391654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108215331840).

87734391654 is an abundant number, since it is smaller than the sum of its proper divisors (128696272026).

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

87734391654 is a wasteful number, since it uses less digits than its factorization.

87734391654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349045.

The product of its digits is 15240960, while the sum is 57.

The spelling of 87734391654 in words is "eighty-seven billion, seven hundred thirty-four million, three hundred ninety-one thousand, six hundred fifty-four".