538387761408 has 72 divisors (see below), whose sum is σ = 1637596123968. Its totient is φ = 153825073152.

The previous prime is 538387761367. The next prime is 538387761427. The reversal of 538387761408 is 804167783835.

It is a happy number.

It is a super-2 number, since 2×538387761408² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50067891 + ... + 50078642.

Almost surely, 2^538387761408 is an apocalyptic number.

It is an amenable number.

538387761408 is an abundant number, since it is smaller than the sum of its proper divisors (1099208362560).

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

538387761408 is a wasteful number, since it uses less digits than its factorization.

538387761408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100146559 (or 100146545 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 60.

The spelling of 538387761408 in words is "five hundred thirty-eight billion, three hundred eighty-seven million, seven hundred sixty-one thousand, four hundred eight".