19701915297011 has 24 divisors (see below), whose sum is σ = 21190071147840. Its totient is φ = 18309079286784.

The previous prime is 19701915296927. The next prime is 19701915297089. The reversal of 19701915297011 is 11079251910791.

It is a de Polignac number, because none of the positive numbers 2^k-19701915297011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19701915297611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96309011 + ... + 96513363.

It is an arithmetic number, because the mean of its divisors is an integer number (882919631160).

Almost surely, 2^{19701915297011} is an apocalyptic number.

19701915297011 is a deficient number, since it is larger than the sum of its proper divisors (1488155850829).

19701915297011 is a wasteful number, since it uses less digits than its factorization.

19701915297011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209483 (or 209464 counting only the distinct ones).

The product of its (nonzero) digits is 357210, while the sum is 53.

The spelling of 19701915297011 in words is "nineteen trillion, seven hundred one billion, nine hundred fifteen million, two hundred ninety-seven thousand, eleven".