19146857046 has 8 divisors (see below), whose sum is σ = 38293714104. Its totient is φ = 6382285680.

The previous prime is 19146857027. The next prime is 19146857057. The reversal of 19146857046 is 64075864191.

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

19146857046 is an admirable number.

It is a super-2 number, since 2×19146857046² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19146857046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1595571415 + ... + 1595571426.

It is an arithmetic number, because the mean of its divisors is an integer number (4786714263).

Almost surely, 2^19146857046 is an apocalyptic number.

19146857046 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19146857046 is a wasteful number, since it uses less digits than its factorization.

19146857046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191142846.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 19146857046 in words is "nineteen billion, one hundred forty-six million, eight hundred fifty-seven thousand, forty-six".