63400428746 has 8 divisors (see below), whose sum is σ = 95144820804. Its totient is φ = 31685488480.

The previous prime is 63400428713. The next prime is 63400428757. The reversal of 63400428746 is 64782400436.

It can be written as a sum of positive squares in 2 ways, for example, as 63068788225 + 331640521 = 251135^2 + 18211^2 .

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

It is a super-2 number, since 2×63400428746² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63400428697 and 63400428706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7357565 + ... + 7366176.

Almost surely, 2^63400428746 is an apocalyptic number.

63400428746 is a deficient number, since it is larger than the sum of its proper divisors (31744392058).

63400428746 is a wasteful number, since it uses less digits than its factorization.

63400428746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14725896.

The product of its (nonzero) digits is 774144, while the sum is 44.

The spelling of 63400428746 in words is "sixty-three billion, four hundred million, four hundred twenty-eight thousand, seven hundred forty-six".