38720801558257 has 32 divisors (see below), whose sum is σ = 49303227617280. Its totient is φ = 29577696583680.

The previous prime is 38720801558227. The next prime is 38720801558293. The reversal of 38720801558257 is 75285510802783.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-38720801558257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38720801558195 and 38720801558204.

It is not an unprimeable number, because it can be changed into a prime (38720801558227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36804657 + ... + 37842097.

It is an arithmetic number, because the mean of its divisors is an integer number (1540725863040).

Almost surely, 2^{38720801558257} is an apocalyptic number.

It is an amenable number.

38720801558257 is a deficient number, since it is larger than the sum of its proper divisors (10582426059023).

38720801558257 is a wasteful number, since it uses less digits than its factorization.

38720801558257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051633.

The product of its (nonzero) digits is 37632000, while the sum is 61.

The spelling of 38720801558257 in words is "thirty-eight trillion, seven hundred twenty billion, eight hundred one million, five hundred fifty-eight thousand, two hundred fifty-seven".