1457878881 has 8 divisors (see below), whose sum is σ = 2006543104. Its totient is φ = 940566960.

The previous prime is 1457878841. The next prime is 1457878927. The reversal of 1457878881 is 1888787541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1457878881 - 2¹⁹ = 1457354593 is a prime.

It is a super-2 number, since 2×1457878881² = 4250821663331624322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1457878811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7837966 + ... + 7838151.

It is an arithmetic number, because the mean of its divisors is an integer number (250817888).

Almost surely, 2^1457878881 is an apocalyptic number.

It is an amenable number.

1457878881 is a deficient number, since it is larger than the sum of its proper divisors (548664223).

1457878881 is a wasteful number, since it uses less digits than its factorization.

1457878881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15676151.

The product of its digits is 4014080, while the sum is 57.

The square root of 1457878881 is about 38182.1801499076. The cubic root of 1457878881 is about 1133.8975447812.

The spelling of 1457878881 in words is "one billion, four hundred fifty-seven million, eight hundred seventy-eight thousand, eight hundred eighty-one".