257438424062 has 8 divisors (see below), whose sum is σ = 387049456416. Its totient is φ = 128421938592.

The previous prime is 257438424059. The next prime is 257438424071. The reversal of 257438424062 is 260424834752.

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

It is a super-2 number, since 2×257438424062² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 257438423998 and 257438424016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148635638 + ... + 148637369.

It is an arithmetic number, because the mean of its divisors is an integer number (48381182052).

Almost surely, 2^257438424062 is an apocalyptic number.

257438424062 is a deficient number, since it is larger than the sum of its proper divisors (129611032354).

257438424062 is a wasteful number, since it uses less digits than its factorization.

257438424062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297273442.

The product of its (nonzero) digits is 2580480, while the sum is 47.

The spelling of 257438424062 in words is "two hundred fifty-seven billion, four hundred thirty-eight million, four hundred twenty-four thousand, sixty-two".