742520537850 has 288 divisors, whose sum is σ = 2307743723520. Its totient is φ = 154677669120.

The previous prime is 742520537797. The next prime is 742520537893. The reversal of 742520537850 is 58735025247.

742520537850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 742520537850.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 13992067 + ... + 14045033.

It is an arithmetic number, because the mean of its divisors is an integer number (8012999040).

Almost surely, 2^742520537850 is an apocalyptic number.

742520537850 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 742520537850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1153871861760).

742520537850 is an abundant number, since it is smaller than the sum of its proper divisors (1565223185670).

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

742520537850 is a wasteful number, since it uses less digits than its factorization.

742520537850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53094 (or 53076 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 48.

The spelling of 742520537850 in words is "seven hundred forty-two billion, five hundred twenty million, five hundred thirty-seven thousand, eight hundred fifty".