463640444155 has 32 divisors (see below), whose sum is σ = 653934468096. Its totient is φ = 308906193024.

The previous prime is 463640444119. The next prime is 463640444161. The reversal of 463640444155 is 551444046364.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-463640444155 is a prime.

It is a super-2 number, since 2×463640444155² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 695232 + ... + 1187698.

It is an arithmetic number, because the mean of its divisors is an integer number (20435452128).

Almost surely, 2^463640444155 is an apocalyptic number.

463640444155 is a deficient number, since it is larger than the sum of its proper divisors (190294023941).

463640444155 is a wasteful number, since it uses less digits than its factorization.

463640444155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493243.

The product of its (nonzero) digits is 2764800, while the sum is 46.

The spelling of 463640444155 in words is "four hundred sixty-three billion, six hundred forty million, four hundred forty-four thousand, one hundred fifty-five".