77349368419 has 4 divisors (see below), whose sum is σ = 77350597920. Its totient is φ = 77348138920.

The previous prime is 77349368417. The next prime is 77349368441. The reversal of 77349368419 is 91486394377.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77349368419 - 2¹ = 77349368417 is a prime.

It is a super-2 number, since 2×77349368419² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77349368417) 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, 514987 + ... + 648004.

It is an arithmetic number, because the mean of its divisors is an integer number (19337649480).

Almost surely, 2^77349368419 is an apocalyptic number.

77349368419 is a deficient number, since it is larger than the sum of its proper divisors (1229501).

77349368419 is a wasteful number, since it uses less digits than its factorization.

77349368419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229500.

The product of its digits is 27433728, while the sum is 61.

The spelling of 77349368419 in words is "seventy-seven billion, three hundred forty-nine million, three hundred sixty-eight thousand, four hundred nineteen".