19772407810953 has 48 divisors (see below), whose sum is σ = 34570746752256. Its totient is φ = 10630647152640.

The previous prime is 19772407810943. The next prime is 19772407810973. The reversal of 19772407810953 is 35901870427791.

19772407810953 is a `hidden beast` number, since 1 + 9 + 7 + 72 + 407 + 8 + 109 + 53 = 666.

It is not a de Polignac number, because 19772407810953 - 2⁸ = 19772407810697 is a prime.

It is a super-2 number, since 2×19772407810953² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (19772407810943) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 681225 + ... + 6325257.

It is an arithmetic number, because the mean of its divisors is an integer number (720223890672).

Almost surely, 2^{19772407810953} is an apocalyptic number.

It is an amenable number.

19772407810953 is a deficient number, since it is larger than the sum of its proper divisors (14798338941303).

19772407810953 is a wasteful number, since it uses less digits than its factorization.

19772407810953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5647334 (or 5647331 counting only the distinct ones).

The product of its (nonzero) digits is 26671680, while the sum is 63.

The spelling of 19772407810953 in words is "nineteen trillion, seven hundred seventy-two billion, four hundred seven million, eight hundred ten thousand, nine hundred fifty-three".