10257866807388 has 24 divisors (see below), whose sum is σ = 23942841983760. Its totient is φ = 3418171873920.

The previous prime is 10257866807387. The next prime is 10257866807389. The reversal of 10257866807388 is 88370866875201.

It is an interprime number because it is at equal distance from previous prime (10257866807387) and next prime (10257866807389).

It is a super-2 number, since 2×10257866807388² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10257866807387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139594473 + ... + 139667936.

It is an arithmetic number, because the mean of its divisors is an integer number (997618415990).

Almost surely, 2^{10257866807388} is an apocalyptic number.

It is an amenable number.

10257866807388 is an abundant number, since it is smaller than the sum of its proper divisors (13684975176372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10257866807388 is a wasteful number, since it uses less digits than its factorization.

10257866807388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279265477 (or 279265475 counting only the distinct ones).

The product of its (nonzero) digits is 216760320, while the sum is 69.

The spelling of 10257866807388 in words is "ten trillion, two hundred fifty-seven billion, eight hundred sixty-six million, eight hundred seven thousand, three hundred eighty-eight".