38426353601781 has 16 divisors (see below), whose sum is σ = 51280229928960. Its totient is φ = 25595024621760.

The previous prime is 38426353601761. The next prime is 38426353601843. The reversal of 38426353601781 is 18710635362483.

It is not a de Polignac number, because 38426353601781 - 2⁹ = 38426353601269 is a prime.

It is a super-2 number, since 2×38426353601781² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38426353601711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116836275 + ... + 117164703.

It is an arithmetic number, because the mean of its divisors is an integer number (3205014370560).

Almost surely, 2^{38426353601781} is an apocalyptic number.

It is an amenable number.

38426353601781 is a deficient number, since it is larger than the sum of its proper divisors (12853876327179).

38426353601781 is a wasteful number, since it uses less digits than its factorization.

38426353601781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362636.

The product of its (nonzero) digits is 17418240, while the sum is 57.

The spelling of 38426353601781 in words is "thirty-eight trillion, four hundred twenty-six billion, three hundred fifty-three million, six hundred one thousand, seven hundred eighty-one".