63547948407 has 4 divisors (see below), whose sum is σ = 84730597880. Its totient is φ = 42365298936.

The previous prime is 63547948381. The next prime is 63547948411. The reversal of 63547948407 is 70484974536.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 63547948407 - 2⁸ = 63547948151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63547941407) 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, 10591324732 + ... + 10591324737.

It is an arithmetic number, because the mean of its divisors is an integer number (21182649470).

Almost surely, 2^63547948407 is an apocalyptic number.

63547948407 is a deficient number, since it is larger than the sum of its proper divisors (21182649473).

63547948407 is a wasteful number, since it uses less digits than its factorization.

63547948407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21182649472.

The product of its (nonzero) digits is 20321280, while the sum is 57.

The spelling of 63547948407 in words is "sixty-three billion, five hundred forty-seven million, nine hundred forty-eight thousand, four hundred seven".