1238373864000 has 3024 divisors, whose sum is σ = 5845968999936. Its totient is φ = 249080832000.

The previous prime is 1238373863981. The next prime is 1238373864001. The reversal of 1238373864000 is 4683738321.

1238373864000 is a `hidden beast` number, since 1 + 23 + 83 + 73 + 86 + 400 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238373864001) by changing a digit.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 18483191967 + ... + 18483192033.

Almost surely, 2^{1238373864000} is an apocalyptic number.

1238373864000 is a gapful number since it is divisible by the number (10) 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 1238373864000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2922984499968).

1238373864000 is an abundant number, since it is smaller than the sum of its proper divisors (4607595135936).

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

1238373864000 is a wasteful number, since it uses less digits than its factorization.

1238373864000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 1238373864000 in words is "one trillion, two hundred thirty-eight billion, three hundred seventy-three million, eight hundred sixty-four thousand".