1613971077 has 8 divisors (see below), whose sum is σ = 2182271040. Its totient is φ = 1060825920.

The previous prime is 1613971067. The next prime is 1613971081. The reversal of 1613971077 is 7701793161.

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

It is not a de Polignac number, because 1613971077 - 2⁶ = 1613971013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1613971067) 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, 3788452 + ... + 3788877.

It is an arithmetic number, because the mean of its divisors is an integer number (272783880).

Almost surely, 2^1613971077 is an apocalyptic number.

It is an amenable number.

1613971077 is a deficient number, since it is larger than the sum of its proper divisors (568299963).

1613971077 is an equidigital number, since it uses as much as digits as its factorization.

1613971077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7577403.

The product of its (nonzero) digits is 55566, while the sum is 42.

The square root of 1613971077 is about 40174.2588855103. The cubic root of 1613971077 is about 1173.0015407752.

The spelling of 1613971077 in words is "one billion, six hundred thirteen million, nine hundred seventy-one thousand, seventy-seven".