63456475142761 has 8 divisors (see below), whose sum is σ = 65083370933448. Its totient is φ = 61833349680000.

The previous prime is 63456475142747. The next prime is 63456475142833. The reversal of 63456475142761 is 16724157465436.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 366115755625 + 63090359387136 = 605075^2 + 7942944^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-63456475142761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63456475142761.

It is not an unprimeable number, because it can be changed into a prime (63456475146761) 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, 942547890 + ... + 942615211.

It is an arithmetic number, because the mean of its divisors is an integer number (8135421366681).

Almost surely, 2^{63456475142761} is an apocalyptic number.

It is an amenable number.

63456475142761 is a deficient number, since it is larger than the sum of its proper divisors (1626895790687).

63456475142761 is a wasteful number, since it uses less digits than its factorization.

63456475142761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885163963.

The product of its digits is 101606400, while the sum is 61.

The spelling of 63456475142761 in words is "sixty-three trillion, four hundred fifty-six billion, four hundred seventy-five million, one hundred forty-two thousand, seven hundred sixty-one".