538406828884 has 12 divisors (see below), whose sum is σ = 947417542708. Its totient is φ = 267716102400.

The previous prime is 538406828881. The next prime is 538406828887. The reversal of 538406828884 is 488828604835.

It is an interprime number because it is at equal distance from previous prime (538406828881) and next prime (538406828887).

It can be written as a sum of positive squares in 2 ways, for example, as 31502700100 + 506904128784 = 177490^2 + 711972^2 .

It is a super-3 number, since 3×538406828884³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538406828881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371827197 + ... + 371828644.

Almost surely, 2^538406828884 is an apocalyptic number.

It is an amenable number.

538406828884 is a deficient number, since it is larger than the sum of its proper divisors (409010713824).

538406828884 is a wasteful number, since it uses less digits than its factorization.

538406828884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743656026 (or 743656024 counting only the distinct ones).

The product of its (nonzero) digits is 94371840, while the sum is 64.

The spelling of 538406828884 in words is "five hundred thirty-eight billion, four hundred six million, eight hundred twenty-eight thousand, eight hundred eighty-four".