75266020731 has 8 divisors (see below), whose sum is σ = 109477848384. Its totient is φ = 45615770120.

The previous prime is 75266020721. The next prime is 75266020733. The reversal of 75266020731 is 13702066257.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75266020731 - 2¹⁴ = 75266004347 is a prime.

It is a super-2 number, since 2×75266020731² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75266020731.

It is not an unprimeable number, because it can be changed into a prime (75266020733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1140394221 + ... + 1140394286.

It is an arithmetic number, because the mean of its divisors is an integer number (13684731048).

Almost surely, 2^75266020731 is an apocalyptic number.

75266020731 is a deficient number, since it is larger than the sum of its proper divisors (34211827653).

75266020731 is a wasteful number, since it uses less digits than its factorization.

75266020731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280788521.

The product of its (nonzero) digits is 105840, while the sum is 39.

Adding to 75266020731 its reverse (13702066257), we get a palindrome (88968086988).

The spelling of 75266020731 in words is "seventy-five billion, two hundred sixty-six million, twenty thousand, seven hundred thirty-one".