87342220477 has 8 divisors (see below), whose sum is σ = 88883517536. Its totient is φ = 85807914192.

The previous prime is 87342220453. The next prime is 87342220489. The reversal of 87342220477 is 77402224378.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87342220477 - 2¹¹ = 87342218429 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 (87342220177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1722483 + ... + 1772464.

It is an arithmetic number, because the mean of its divisors is an integer number (11110439692).

Almost surely, 2^87342220477 is an apocalyptic number.

It is an amenable number.

87342220477 is a deficient number, since it is larger than the sum of its proper divisors (1541297059).

87342220477 is a wasteful number, since it uses less digits than its factorization.

87342220477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3495387.

The product of its (nonzero) digits is 1053696, while the sum is 46.

The spelling of 87342220477 in words is "eighty-seven billion, three hundred forty-two million, two hundred twenty thousand, four hundred seventy-seven".