4102544538 has 20 divisors (see below), whose sum is σ = 9192739050. Its totient is φ = 1367514792.

The previous prime is 4102544513. The next prime is 4102544539. The reversal of 4102544538 is 8354452014.

It is a happy number.

4102544538 is a `hidden beast` number, since 4 + 102 + 544 + 5 + 3 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3611168649 + 491375889 = 60093^2 + 22167^2 .

It is a super-3 number, since 3×4102544538³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (4102544539) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12662013 + ... + 12662336.

Almost surely, 2^4102544538 is an apocalyptic number.

4102544538 is an abundant number, since it is smaller than the sum of its proper divisors (5090194512).

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

4102544538 is a wasteful number, since it uses less digits than its factorization.

4102544538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25324363 (or 25324354 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 4102544538 is about 64051.1087960232. The cubic root of 4102544538 is about 1600.8516999345.

The spelling of 4102544538 in words is "four billion, one hundred two million, five hundred forty-four thousand, five hundred thirty-eight".