74266236538368 has 320 divisors, whose sum is σ = 237263488450560. Its totient is φ = 20182963249152.

The previous prime is 74266236538331. The next prime is 74266236538369. The reversal of 74266236538368 is 86383563266247.

It is a happy number.

It is a super-2 number, since 2×74266236538368² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74266236538369) 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, 43427121 + ... + 45104847.

It is an arithmetic number, because the mean of its divisors is an integer number (741448401408).

Almost surely, 2^{74266236538368} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74266236538368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118631744225280).

74266236538368 is an abundant number, since it is smaller than the sum of its proper divisors (162997251912192).

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

74266236538368 is a wasteful number, since it uses less digits than its factorization.

74266236538368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677957 (or 1677941 counting only the distinct ones).

The product of its digits is 1254113280, while the sum is 69.

The spelling of 74266236538368 in words is "seventy-four trillion, two hundred sixty-six billion, two hundred thirty-six million, five hundred thirty-eight thousand, three hundred sixty-eight".