7438256463 has 16 divisors (see below), whose sum is σ = 10823579136. Its totient is φ = 4506243840.

The previous prime is 7438256431. The next prime is 7438256489. The reversal of 7438256463 is 3646528347.

It is not a de Polignac number, because 7438256463 - 2⁵ = 7438256431 is a prime.

It is a super-2 number, since 2×7438256463² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7438256263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42106 + ... + 129032.

It is an arithmetic number, because the mean of its divisors is an integer number (676473696).

Almost surely, 2^7438256463 is an apocalyptic number.

7438256463 is a deficient number, since it is larger than the sum of its proper divisors (3385322673).

7438256463 is a wasteful number, since it uses less digits than its factorization.

7438256463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89534.

The product of its digits is 2903040, while the sum is 48.

The square root of 7438256463 is about 86245.3271951588. The cubic root of 7438256463 is about 1952.0475064268.

It can be divided in two parts, 7438 and 256463, that added together give a triangular number (263901 = T₇₂₆).

The spelling of 7438256463 in words is "seven billion, four hundred thirty-eight million, two hundred fifty-six thousand, four hundred sixty-three".