263416394632 has 8 divisors (see below), whose sum is σ = 493905739950. Its totient is φ = 131708197312.

The previous prime is 263416394603. The next prime is 263416394641. The reversal of 263416394632 is 236493614362.

It can be written as a sum of positive squares in only one way, i.e., 257602942116 + 5813452516 = 507546^2 + 76246^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16463524657 + ... + 16463524672.

Almost surely, 2^263416394632 is an apocalyptic number.

It is an amenable number.

263416394632 is a deficient number, since it is larger than the sum of its proper divisors (230489345318).

263416394632 is a wasteful number, since it uses less digits than its factorization.

263416394632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32927049335 (or 32927049331 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 49.

The spelling of 263416394632 in words is "two hundred sixty-three billion, four hundred sixteen million, three hundred ninety-four thousand, six hundred thirty-two".