31400763663 has 4 divisors (see below), whose sum is σ = 41867684888.
Its totient is φ = 20933842440.
The previous prime is 31400763613. The next prime is 31400763673. The reversal of 31400763663 is 36636700413.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 31400763663 - 216 = 31400698127 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 (31400763613) 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, 5233460608 + ... + 5233460613.
It is an arithmetic number, because the mean of its divisors is an integer number (10466921222).
Almost surely, 231400763663 is an apocalyptic number.
31400763663 is a deficient number, since it is larger than the sum of its proper divisors (10466921225).
31400763663 is a wasteful number, since it uses less digits than its factorization.
31400763663 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10466921224.
The product of its (nonzero) digits is 163296, while the sum is 39.
The spelling of 31400763663 in words is "thirty-one billion, four hundred million, seven hundred sixty-three thousand, six hundred sixty-three".