42721433412724 has 48 divisors (see below), whose sum is σ = 82009402937280. Its totient is φ = 19311686461440.

The previous prime is 42721433412709. The next prime is 42721433412727.

42721433412724 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42721433412727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24312862 + ... + 26010730.

It is an arithmetic number, because the mean of its divisors is an integer number (1708529227860).

Almost surely, 2^{42721433412724} is an apocalyptic number.

42721433412724 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42721433412724 is a deficient number, since it is larger than the sum of its proper divisors (39287969524556).

42721433412724 is a wasteful number, since it uses less digits than its factorization.

42721433412724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701040 (or 1701038 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 46.

It can be divided in two parts, 4272143 and 3412724, that added together give a palindrome (7684867).

The spelling of 42721433412724 in words is "forty-two trillion, seven hundred twenty-one billion, four hundred thirty-three million, four hundred twelve thousand, seven hundred twenty-four".