19772868523470 has 32 divisors (see below), whose sum is σ = 47459540824992. Its totient is φ = 5272247565312.

The previous prime is 19772868523451. The next prime is 19772868523481. The reversal of 19772868523470 is 7432586827791.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19772868523395 and 19772868523404.

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, 32025007 + ... + 32636586.

It is an arithmetic number, because the mean of its divisors is an integer number (1483110650781).

It is a 1-persistent number, because it is pandigital, but 2⋅19772868523470 = 39545737046940 is not.

Almost surely, 2^{19772868523470} is an apocalyptic number.

19772868523470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19772868523470 is an abundant number, since it is smaller than the sum of its proper divisors (27686672301522).

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

19772868523470 is a wasteful number, since it uses less digits than its factorization.

19772868523470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64671796.

The product of its (nonzero) digits is 284497920, while the sum is 69.

The spelling of 19772868523470 in words is "nineteen trillion, seven hundred seventy-two billion, eight hundred sixty-eight million, five hundred twenty-three thousand, four hundred seventy".