77233545507017 has 4 divisors (see below), whose sum is σ = 77234678513616. Its totient is φ = 77232412500420.

The previous prime is 77233545506899. The next prime is 77233545507049. The reversal of 77233545507017 is 71070554533277.

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.

It is a cyclic number.

It is not a de Polignac number, because 77233545507017 - 2²² = 77233541312713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77233545557017) 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, 566401043 + ... + 566537384.

It is an arithmetic number, because the mean of its divisors is an integer number (19308669628404).

Almost surely, 2^{77233545507017} is an apocalyptic number.

It is an amenable number.

77233545507017 is a deficient number, since it is larger than the sum of its proper divisors (1133006599).

77233545507017 is a wasteful number, since it uses less digits than its factorization.

77233545507017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133006598.

The product of its (nonzero) digits is 21609000, while the sum is 56.

The spelling of 77233545507017 in words is "seventy-seven trillion, two hundred thirty-three billion, five hundred forty-five million, five hundred seven thousand, seventeen".