457156281421 has 32 divisors (see below), whose sum is σ = 537027724800. Its totient is φ = 388987401600.

The previous prime is 457156281383. The next prime is 457156281437. The reversal of 457156281421 is 124182651754.

It is not a de Polignac number, because 457156281421 - 2¹¹ = 457156279373 is a prime.

It is a super-3 number, since 3×457156281421³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457156281481) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 47022841 + ... + 47032561.

It is an arithmetic number, because the mean of its divisors is an integer number (16782116400).

Almost surely, 2^457156281421 is an apocalyptic number.

It is an amenable number.

457156281421 is a deficient number, since it is larger than the sum of its proper divisors (79871443379).

457156281421 is an equidigital number, since it uses as much as digits as its factorization.

457156281421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10730 (or 10716 counting only the distinct ones).

The product of its digits is 537600, while the sum is 46.

The spelling of 457156281421 in words is "four hundred fifty-seven billion, one hundred fifty-six million, two hundred eighty-one thousand, four hundred twenty-one".