1948947531558 has 32 divisors (see below), whose sum is σ = 3901442707296. Its totient is φ = 649058101248.

The previous prime is 1948947531491. The next prime is 1948947531617. The reversal of 1948947531558 is 8551357498491.

It is a junction number, because it is equal to n+sod(n) for n = 1948947531492 and 1948947531501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45522210 + ... + 45565002.

It is an arithmetic number, because the mean of its divisors is an integer number (121920084603).

Almost surely, 2^{1948947531558} is an apocalyptic number.

1948947531558 is an abundant number, since it is smaller than the sum of its proper divisors (1952495175738).

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

1948947531558 is a wasteful number, since it uses less digits than its factorization.

1948947531558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49528.

The product of its digits is 217728000, while the sum is 69.

The spelling of 1948947531558 in words is "one trillion, nine hundred forty-eight billion, nine hundred forty-seven million, five hundred thirty-one thousand, five hundred fifty-eight".