457642152887 has 4 divisors (see below), whose sum is σ = 457882892376. Its totient is φ = 457401413400.

The previous prime is 457642152827. The next prime is 457642152893. The reversal of 457642152887 is 788251246754.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 788251246754 = 2 ⋅394125623377.

It is a cyclic number.

It is not a de Polignac number, because 457642152887 - 2¹⁶ = 457642087351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457642152817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120366893 + ... + 120370694.

It is an arithmetic number, because the mean of its divisors is an integer number (114470723094).

Almost surely, 2^457642152887 is an apocalyptic number.

457642152887 is a deficient number, since it is larger than the sum of its proper divisors (240739489).

457642152887 is a wasteful number, since it uses less digits than its factorization.

457642152887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240739488.

The product of its digits is 30105600, while the sum is 59.

The spelling of 457642152887 in words is "four hundred fifty-seven billion, six hundred forty-two million, one hundred fifty-two thousand, eight hundred eighty-seven".