19776375012 has 24 divisors (see below), whose sum is σ = 46149140800. Its totient is φ = 6591515616.

The previous prime is 19776374923. The next prime is 19776375049. The reversal of 19776375012 is 21057367791.

It is a super-2 number, since 2×19776375012² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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, 70314 + ... + 210942.

Almost surely, 2^19776375012 is an apocalyptic number.

19776375012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is a pronic number, being equal to 140628×140629.

It is an amenable number.

19776375012 is an abundant number, since it is smaller than the sum of its proper divisors (26372765788).

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

19776375012 is a wasteful number, since it uses less digits than its factorization.

19776375012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152355 (or 152353 counting only the distinct ones).

The product of its (nonzero) digits is 555660, while the sum is 48.

The spelling of 19776375012 in words is "nineteen billion, seven hundred seventy-six million, three hundred seventy-five thousand, twelve".