855623079487 has 8 divisors (see below), whose sum is σ = 949227454080. Its totient is φ = 764655447960.

The previous prime is 855623079463. The next prime is 855623079529. The reversal of 855623079487 is 784970326558.

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 855623079487 - 2³¹ = 853475595839 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 (855623079187) 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, 659185083 + ... + 659186380.

It is an arithmetic number, because the mean of its divisors is an integer number (118653431760).

Almost surely, 2^855623079487 is an apocalyptic number.

855623079487 is a deficient number, since it is larger than the sum of its proper divisors (93604374593).

855623079487 is a wasteful number, since it uses less digits than its factorization.

855623079487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318371533.

The product of its (nonzero) digits is 101606400, while the sum is 64.

The spelling of 855623079487 in words is "eight hundred fifty-five billion, six hundred twenty-three million, seventy-nine thousand, four hundred eighty-seven".