1948561592855 has 8 divisors (see below), whose sum is σ = 2338284311952. Its totient is φ = 1558842340608.

The previous prime is 1948561592801. The next prime is 1948561592863. The reversal of 1948561592855 is 5582951658491.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1948561592855 is a prime.

It is a super-2 number, since 2×1948561592855² (a number of 25 digits) contains 22 as substring.

It is a Duffinian 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, 593447 + ... + 2061383.

It is an arithmetic number, because the mean of its divisors is an integer number (292285538994).

Almost surely, 2^{1948561592855} is an apocalyptic number.

1948561592855 is a deficient number, since it is larger than the sum of its proper divisors (389722719097).

1948561592855 is a wasteful number, since it uses less digits than its factorization.

1948561592855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733425.

The product of its digits is 155520000, while the sum is 68.

The spelling of 1948561592855 in words is "one trillion, nine hundred forty-eight billion, five hundred sixty-one million, five hundred ninety-two thousand, eight hundred fifty-five".