612771604101 has 6 divisors (see below), whose sum is σ = 885114539270. Its totient is φ = 408514402728.

The previous prime is 612771604073. The next prime is 612771604117. The reversal of 612771604101 is 101406177216.

612771604101 is a `hidden beast` number, since 6 + 12 + 77 + 160 + 410 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 560890153476 + 51881450625 = 748926^2 + 227775^2 .

It is not a de Polignac number, because 612771604101 - 2¹⁴ = 612771587717 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 (612771604001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34042866886 + ... + 34042866903.

Almost surely, 2^612771604101 is an apocalyptic number.

It is an amenable number.

612771604101 is a deficient number, since it is larger than the sum of its proper divisors (272342935169).

612771604101 is a wasteful number, since it uses less digits than its factorization.

612771604101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68085733795 (or 68085733792 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The spelling of 612771604101 in words is "six hundred twelve billion, seven hundred seventy-one million, six hundred four thousand, one hundred one".