75428869557 has 12 divisors (see below), whose sum is σ = 106143673920. Its totient is φ = 47639285352.

The previous prime is 75428869547. The next prime is 75428869573. The reversal of 75428869557 is 75596882457.

It is not a de Polignac number, because 75428869557 - 2¹⁶ = 75428804021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75428869517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34822957 + ... + 34825122.

It is an arithmetic number, because the mean of its divisors is an integer number (8845306160).

Almost surely, 2^75428869557 is an apocalyptic number.

It is an amenable number.

75428869557 is a deficient number, since it is larger than the sum of its proper divisors (30714804363).

75428869557 is a wasteful number, since it uses less digits than its factorization.

75428869557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69648120 (or 69648101 counting only the distinct ones).

The product of its digits is 169344000, while the sum is 66.

The spelling of 75428869557 in words is "seventy-five billion, four hundred twenty-eight million, eight hundred sixty-nine thousand, five hundred fifty-seven".