1912197056 has 112 divisors (see below), whose sum is σ = 4883822592. Its totient is φ = 720921600.

The previous prime is 1912197047. The next prime is 1912197151. The reversal of 1912197056 is 6507912191.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 2.

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, 146510 + ... + 159026.

Almost surely, 2^1912197056 is an apocalyptic number.

1912197056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1912197056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2441911296).

1912197056 is an abundant number, since it is smaller than the sum of its proper divisors (2971625536).

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

1912197056 is a wasteful number, since it uses less digits than its factorization.

1912197056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12578 (or 12568 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 41.

The square root of 1912197056 is about 43728.6754430088. The cubic root of 1912197056 is about 1241.2069967898.

The spelling of 1912197056 in words is "one billion, nine hundred twelve million, one hundred ninety-seven thousand, fifty-six".