461212630023520 has 96 divisors (see below), whose sum is σ = 1092785341027968. Its totient is φ = 183948327518208.

The previous prime is 461212630023511. The next prime is 461212630023559. The reversal of 461212630023520 is 25320036212164.

It is a self number, because there is not a number n which added to its sum of digits gives 461212630023520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 752402592 + ... + 753015328.

It is an arithmetic number, because the mean of its divisors is an integer number (11383180635708).

Almost surely, 2^{461212630023520} is an apocalyptic number.

461212630023520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 461212630023520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (546392670513984).

461212630023520 is an abundant number, since it is smaller than the sum of its proper divisors (631572711004448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

461212630023520 is a wasteful number, since it uses less digits than its factorization.

461212630023520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626432 (or 626424 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 461212630023520 its reverse (25320036212164), we get a palindrome (486532666235684).

The spelling of 461212630023520 in words is "four hundred sixty-one trillion, two hundred twelve billion, six hundred thirty million, twenty-three thousand, five hundred twenty".