74706561852 has 192 divisors, whose sum is σ = 208330752000. Its totient is φ = 20624751360.

The previous prime is 74706561851. The next prime is 74706561857. The reversal of 74706561852 is 25816560747.

It is a junction number, because it is equal to n+sod(n) for n = 74706561795 and 74706561804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74706561851) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4309899 + ... + 4327197.

It is an arithmetic number, because the mean of its divisors is an integer number (1085056000).

Almost surely, 2^74706561852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74706561852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104165376000).

74706561852 is an abundant number, since it is smaller than the sum of its proper divisors (133624190148).

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

74706561852 is a wasteful number, since it uses less digits than its factorization.

74706561852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17416 (or 17414 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 74706561852 in words is "seventy-four billion, seven hundred six million, five hundred sixty-one thousand, eight hundred fifty-two".