19214679077 has 4 divisors (see below), whose sum is σ = 20961468096. Its totient is φ = 17467890060.

The previous prime is 19214679059. The next prime is 19214679101. The reversal of 19214679077 is 77097641291.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77097641291 = 11 ⋅7008876481.

It is a cyclic number.

It is not a de Polignac number, because 19214679077 - 2¹² = 19214674981 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 (19214679007) 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, 873394493 + ... + 873394514.

It is an arithmetic number, because the mean of its divisors is an integer number (5240367024).

Almost surely, 2^19214679077 is an apocalyptic number.

It is an amenable number.

19214679077 is a deficient number, since it is larger than the sum of its proper divisors (1746789019).

19214679077 is a wasteful number, since it uses less digits than its factorization.

19214679077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746789018.

The product of its (nonzero) digits is 1333584, while the sum is 53.

The spelling of 19214679077 in words is "nineteen billion, two hundred fourteen million, six hundred seventy-nine thousand, seventy-seven".