75145477454157 has 16 divisors (see below), whose sum is σ = 109612151523648. Its totient is φ = 45413697415680.

The previous prime is 75145477454087. The next prime is 75145477454167.

It is a happy number.

75145477454157 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 75145477454157 - 2¹⁰ = 75145477453133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75145477454167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3225392998 + ... + 3225416295.

It is an arithmetic number, because the mean of its divisors is an integer number (6850759470228).

Almost surely, 2^{75145477454157} is an apocalyptic number.

It is an amenable number.

75145477454157 is a deficient number, since it is larger than the sum of its proper divisors (34466674069491).

75145477454157 is a wasteful number, since it uses less digits than its factorization.

75145477454157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6450809660.

The product of its digits is 384160000, while the sum is 66.

The spelling of 75145477454157 in words is "seventy-five trillion, one hundred forty-five billion, four hundred seventy-seven million, four hundred fifty-four thousand, one hundred fifty-seven".