6257126401 has 4 divisors (see below), whose sum is σ = 6257345472. Its totient is φ = 6256907332.

The previous prime is 6257126377. The next prime is 6257126429. The reversal of 6257126401 is 1046217526.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1046217526 = 2 ⋅523108763.

It is a cyclic number.

It is not a de Polignac number, because 6257126401 - 2¹⁹ = 6256602113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6257136401) 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, 58885 + ... + 126418.

It is an arithmetic number, because the mean of its divisors is an integer number (1564336368).

Almost surely, 2^6257126401 is an apocalyptic number.

It is an amenable number.

6257126401 is a deficient number, since it is larger than the sum of its proper divisors (219071).

6257126401 is a wasteful number, since it uses less digits than its factorization.

6257126401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219070.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 6257126401 is about 79101.9999810371. Note that the first 4 decimals coincide. The cubic root of 6257126401 is about 1842.7155870171.

The spelling of 6257126401 in words is "six billion, two hundred fifty-seven million, one hundred twenty-six thousand, four hundred one".