2064117477 has 4 divisors (see below), whose sum is σ = 2752156640. Its totient is φ = 1376078316.

The previous prime is 2064117463. The next prime is 2064117479. The reversal of 2064117477 is 7747114602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2064117477 - 2¹⁸ = 2063855333 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 (2064117479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344019577 + ... + 344019582.

It is an arithmetic number, because the mean of its divisors is an integer number (688039160).

Almost surely, 2^2064117477 is an apocalyptic number.

It is an amenable number.

2064117477 is a deficient number, since it is larger than the sum of its proper divisors (688039163).

2064117477 is an equidigital number, since it uses as much as digits as its factorization.

2064117477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688039162.

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 2064117477 is about 45432.5596571446. The cubic root of 2064117477 is about 1273.2435076312.

The spelling of 2064117477 in words is "two billion, sixty-four million, one hundred seventeen thousand, four hundred seventy-seven".