87149337854 has 16 divisors (see below), whose sum is σ = 132835148208. Its totient is φ = 42876148992.

The previous prime is 87149337787. The next prime is 87149337901. The reversal of 87149337854 is 45873394178.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 87149337793 and 87149337802.

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, 1264772 + ... + 1331895.

It is an arithmetic number, because the mean of its divisors is an integer number (8302196763).

Almost surely, 2^87149337854 is an apocalyptic number.

87149337854 is a deficient number, since it is larger than the sum of its proper divisors (45685810354).

87149337854 is a wasteful number, since it uses less digits than its factorization.

87149337854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596939.

The product of its digits is 20321280, while the sum is 59.

The spelling of 87149337854 in words is "eighty-seven billion, one hundred forty-nine million, three hundred thirty-seven thousand, eight hundred fifty-four".