742004293581 has 16 divisors (see below), whose sum is σ = 1117897243200. Its totient is φ = 486285298704.

The previous prime is 742004293571. The next prime is 742004293619. The reversal of 742004293581 is 185392400247.

742004293581 is a `hidden beast` number, since 7 + 4 + 20 + 0 + 42 + 9 + 3 + 581 = 666.

It is not a de Polignac number, because 742004293581 - 2¹¹ = 742004291533 is a prime.

It is a super-2 number, since 2×742004293581² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742004293571) 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, 232893666 + ... + 232896851.

It is an arithmetic number, because the mean of its divisors is an integer number (69868577700).

Almost surely, 2^742004293581 is an apocalyptic number.

It is an amenable number.

742004293581 is a deficient number, since it is larger than the sum of its proper divisors (375892949619).

742004293581 is a wasteful number, since it uses less digits than its factorization.

742004293581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465790585 (or 465790579 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 742004293581 in words is "seven hundred forty-two billion, four million, two hundred ninety-three thousand, five hundred eighty-one".