1538431055346 has 16 divisors (see below), whose sum is σ = 3079601983584. Its totient is φ = 512353706304.

The previous prime is 1538431055303. The next prime is 1538431055377. The reversal of 1538431055346 is 6435501348351.

It is a happy number.

It is a super-3 number, since 3×1538431055346³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1538431055295 and 1538431055304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114154071 + ... + 114167546.

It is an arithmetic number, because the mean of its divisors is an integer number (192475123974).

Almost surely, 2^{1538431055346} is an apocalyptic number.

1538431055346 is an abundant number, since it is smaller than the sum of its proper divisors (1541170928238).

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

1538431055346 is a wasteful number, since it uses less digits than its factorization.

1538431055346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228322745.

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 1538431055346 in words is "one trillion, five hundred thirty-eight billion, four hundred thirty-one million, fifty-five thousand, three hundred forty-six".