75624781345 has 8 divisors (see below), whose sum is σ = 92287869120. Its totient is φ = 59474404080.

The previous prime is 75624781339. The next prime is 75624781409. The reversal of 75624781345 is 54318742657.

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

It is not a de Polignac number, because 75624781345 - 2¹³ = 75624773153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75624781292 and 75624781301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128177301 + ... + 128177890.

It is an arithmetic number, because the mean of its divisors is an integer number (11535983640).

Almost surely, 2^75624781345 is an apocalyptic number.

It is an amenable number.

75624781345 is a deficient number, since it is larger than the sum of its proper divisors (16663087775).

75624781345 is a wasteful number, since it uses less digits than its factorization.

75624781345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256355255.

The product of its digits is 5644800, while the sum is 52.

The spelling of 75624781345 in words is "seventy-five billion, six hundred twenty-four million, seven hundred eighty-one thousand, three hundred forty-five".