1613077121761 has 8 divisors (see below), whose sum is σ = 1843700025024. Its totient is φ = 1382500047120.

The previous prime is 1613077121717. The next prime is 1613077121767. The reversal of 1613077121761 is 1671217703161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1613077121761 - 2⁷ = 1613077121633 is a prime.

It is a super-2 number, since 2×1613077121761² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1613077121767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11381695 + ... + 11522548.

It is an arithmetic number, because the mean of its divisors is an integer number (230462503128).

Almost surely, 2^{1613077121761} is an apocalyptic number.

It is an amenable number.

1613077121761 is a deficient number, since it is larger than the sum of its proper divisors (230622903263).

1613077121761 is a wasteful number, since it uses less digits than its factorization.

1613077121761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22914311.

The product of its (nonzero) digits is 74088, while the sum is 43.

The spelling of 1613077121761 in words is "one trillion, six hundred thirteen billion, seventy-seven million, one hundred twenty-one thousand, seven hundred sixty-one".