1238501345688 has 192 divisors, whose sum is σ = 3604691376000. Its totient is φ = 382974345216.

The previous prime is 1238501345687. The next prime is 1238501345699. The reversal of 1238501345688 is 8865431058321.

1238501345688 is a `hidden beast` number, since 1 + 2 + 3 + 8 + 501 + 3 + 4 + 56 + 88 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238501345687) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20713131 + ... + 20772837.

It is an arithmetic number, because the mean of its divisors is an integer number (18774434250).

Almost surely, 2^{1238501345688} is an apocalyptic number.

1238501345688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1238501345688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1802345688000).

1238501345688 is an abundant number, since it is smaller than the sum of its proper divisors (2366190030312).

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

1238501345688 is a wasteful number, since it uses less digits than its factorization.

1238501345688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60054 (or 60047 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The spelling of 1238501345688 in words is "one trillion, two hundred thirty-eight billion, five hundred one million, three hundred forty-five thousand, six hundred eighty-eight".