75478923052 has 48 divisors (see below), whose sum is σ = 142674027552. Its totient is φ = 34732454400.

The previous prime is 75478923031. The next prime is 75478923053. The reversal of 75478923052 is 25032987457.

It is a happy number.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (75478923053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41908552 + ... + 41910352.

It is an arithmetic number, because the mean of its divisors is an integer number (2972375574).

Almost surely, 2^75478923052 is an apocalyptic number.

It is an amenable number.

75478923052 is a deficient number, since it is larger than the sum of its proper divisors (67195104500).

75478923052 is a wasteful number, since it uses less digits than its factorization.

75478923052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3778 (or 3776 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 75478923052 in words is "seventy-five billion, four hundred seventy-eight million, nine hundred twenty-three thousand, fifty-two".