1613211575975 has 48 divisors (see below), whose sum is σ = 2035021896096. Its totient is φ = 1268434944000.

The previous prime is 1613211575971. The next prime is 1613211576059. The reversal of 1613211575975 is 5795751123161.

It is not a de Polignac number, because 1613211575975 - 2² = 1613211575971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1613211575971) 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, 231746495 + ... + 231753455.

It is an arithmetic number, because the mean of its divisors is an integer number (42396289502).

Almost surely, 2^{1613211575975} is an apocalyptic number.

1613211575975 is a deficient number, since it is larger than the sum of its proper divisors (421810320121).

1613211575975 is a wasteful number, since it uses less digits than its factorization.

1613211575975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7716 (or 7711 counting only the distinct ones).

The product of its digits is 1984500, while the sum is 53.

The spelling of 1613211575975 in words is "one trillion, six hundred thirteen billion, two hundred eleven million, five hundred seventy-five thousand, nine hundred seventy-five".