38349388877 has 2 divisors, whose sum is σ = 38349388878. Its totient is φ = 38349388876.

The previous prime is 38349388873. The next prime is 38349388949. The reversal of 38349388877 is 77888394383.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38283226921 + 66161956 = 195661^2 + 8134^2 .

It is a cyclic number.

It is not a de Polignac number, because 38349388877 - 2² = 38349388873 is a prime.

It is a super-2 number, since 2×38349388877² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38349388873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19174694438 + 19174694439.

It is an arithmetic number, because the mean of its divisors is an integer number (19174694439).

Almost surely, 2^38349388877 is an apocalyptic number.

It is an amenable number.

38349388877 is a deficient number, since it is larger than the sum of its proper divisors (1).

38349388877 is an equidigital number, since it uses as much as digits as its factorization.

38349388877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 195084288, while the sum is 68.

The spelling of 38349388877 in words is "thirty-eight billion, three hundred forty-nine million, three hundred eighty-eight thousand, eight hundred seventy-seven".