75145763820 has 24 divisors (see below), whose sum is σ = 210408138864. Its totient is φ = 20038870336.

The previous prime is 75145763813. The next prime is 75145763827. The reversal of 75145763820 is 2836754157.

It is an interprime number because it is at equal distance from previous prime (75145763813) and next prime (75145763827).

It is a self number, because there is not a number n which added to its sum of digits gives 75145763820.

It is not an unprimeable number, because it can be changed into a prime (75145763827) 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, 626214639 + ... + 626214758.

It is an arithmetic number, because the mean of its divisors is an integer number (8767005786).

Almost surely, 2^75145763820 is an apocalyptic number.

It is an amenable number.

75145763820 is an abundant number, since it is smaller than the sum of its proper divisors (135262375044).

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

75145763820 is a wasteful number, since it uses less digits than its factorization.

75145763820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252429409 (or 1252429407 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 75145763820 in words is "seventy-five billion, one hundred forty-five million, seven hundred sixty-three thousand, eight hundred twenty".