77671421226031 has 4 divisors (see below), whose sum is σ = 82240328356992. Its totient is φ = 73102514095072.

The previous prime is 77671421225989. The next prime is 77671421226041. The reversal of 77671421226031 is 13062212417677.

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 77671421226031 - 2¹⁵ = 77671421193263 is a prime.

It is a super-2 number, since 2×77671421226031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77671421226041) 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, 2284453565455 + ... + 2284453565488.

It is an arithmetic number, because the mean of its divisors is an integer number (20560082089248).

Almost surely, 2^{77671421226031} is an apocalyptic number.

77671421226031 is a deficient number, since it is larger than the sum of its proper divisors (4568907130961).

77671421226031 is a wasteful number, since it uses less digits than its factorization.

77671421226031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4568907130960.

The product of its (nonzero) digits is 1185408, while the sum is 49.

The spelling of 77671421226031 in words is "seventy-seven trillion, six hundred seventy-one billion, four hundred twenty-one million, two hundred twenty-six thousand, thirty-one".