20846519446 has 16 divisors (see below), whose sum is σ = 33037032960. Its totient is φ = 9838224360.

The previous prime is 20846519437. The next prime is 20846519527. The reversal of 20846519446 is 64491564802.

It is a super-2 number, since 2×20846519446² (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 20846519446.

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, 1001866 + ... + 1022461.

It is an arithmetic number, because the mean of its divisors is an integer number (2064814560).

Almost surely, 2^20846519446 is an apocalyptic number.

20846519446 is a deficient number, since it is larger than the sum of its proper divisors (12190513514).

20846519446 is a wasteful number, since it uses less digits than its factorization.

20846519446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024619.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 20846519446 in words is "twenty billion, eight hundred forty-six million, five hundred nineteen thousand, four hundred forty-six".