1234426642556 has 48 divisors (see below), whose sum is σ = 2239333662720. Its totient is φ = 594786447360.

The previous prime is 1234426642507. The next prime is 1234426642583. The reversal of 1234426642556 is 6552466244321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175366085 + ... + 175373123.

It is an arithmetic number, because the mean of its divisors is an integer number (46652784640).

Almost surely, 2^{1234426642556} is an apocalyptic number.

It is an amenable number.

1234426642556 is a deficient number, since it is larger than the sum of its proper divisors (1004907020164).

1234426642556 is a wasteful number, since it uses less digits than its factorization.

1234426642556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12834 (or 12832 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 50.

The spelling of 1234426642556 in words is "one trillion, two hundred thirty-four billion, four hundred twenty-six million, six hundred forty-two thousand, five hundred fifty-six".