77341100381 has 4 divisors (see below), whose sum is σ = 81890576892. Its totient is φ = 72791623872.

The previous prime is 77341100339. The next prime is 77341100387. The reversal of 77341100381 is 18300114377.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18300114377 = 673 ⋅27191849.

It can be written as a sum of positive squares in 2 ways, for example, as 53033484100 + 24307616281 = 230290^2 + 155909^2 .

It is a cyclic number.

It is not a de Polignac number, because 77341100381 - 2²² = 77336906077 is a prime.

It is a super-2 number, since 2×77341100381² (a number of 23 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 (77341100387) 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, 2274738230 + ... + 2274738263.

It is an arithmetic number, because the mean of its divisors is an integer number (20472644223).

Almost surely, 2^77341100381 is an apocalyptic number.

It is an amenable number.

77341100381 is a deficient number, since it is larger than the sum of its proper divisors (4549476511).

77341100381 is a wasteful number, since it uses less digits than its factorization.

77341100381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4549476510.

The product of its (nonzero) digits is 14112, while the sum is 35.

The spelling of 77341100381 in words is "seventy-seven billion, three hundred forty-one million, one hundred thousand, three hundred eighty-one".