1934978021248 has 64 divisors (see below), whose sum is σ = 4148505929520. Its totient is φ = 895650324480.

The previous prime is 1934978021183. The next prime is 1934978021303. The reversal of 1934978021248 is 8421208794391.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 1934978021192 and 1934978021201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7156086 + ... + 7421557.

Almost surely, 2^{1934978021248} is an apocalyptic number.

It is an amenable number.

1934978021248 is an abundant number, since it is smaller than the sum of its proper divisors (2213527908272).

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

1934978021248 is a wasteful number, since it uses less digits than its factorization.

1934978021248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14577735 (or 14577723 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 58.

The spelling of 1934978021248 in words is "one trillion, nine hundred thirty-four billion, nine hundred seventy-eight million, twenty-one thousand, two hundred forty-eight".