1948955977558 has 16 divisors (see below), whose sum is σ = 2984551770960. Its totient is φ = 954233921536.

The previous prime is 1948955977511. The next prime is 1948955977571. The reversal of 1948955977558 is 8557795598491.

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, 32103091 + ... + 32163742.

It is an arithmetic number, because the mean of its divisors is an integer number (186534485685).

Almost surely, 2^{1948955977558} is an apocalyptic number.

1948955977558 is a deficient number, since it is larger than the sum of its proper divisors (1035595793402).

1948955977558 is a wasteful number, since it uses less digits than its factorization.

1948955977558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64267151.

The product of its digits is 5715360000, while the sum is 82.

The spelling of 1948955977558 in words is "one trillion, nine hundred forty-eight billion, nine hundred fifty-five million, nine hundred seventy-seven thousand, five hundred fifty-eight".