975447457142 has 4 divisors (see below), whose sum is σ = 1463171185716. Its totient is φ = 487723728570.

The previous prime is 975447457133. The next prime is 975447457147. The reversal of 975447457142 is 241754744579.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241754744579 = 15877 ⋅15226727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (975447457147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243861864284 + ... + 243861864287.

It is an arithmetic number, because the mean of its divisors is an integer number (365792796429).

Almost surely, 2^975447457142 is an apocalyptic number.

975447457142 is a deficient number, since it is larger than the sum of its proper divisors (487723728574).

975447457142 is a wasteful number, since it uses less digits than its factorization.

975447457142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487723728573.

The product of its digits is 39513600, while the sum is 59.

The spelling of 975447457142 in words is "nine hundred seventy-five billion, four hundred forty-seven million, four hundred fifty-seven thousand, one hundred forty-two".