461521767642 has 128 divisors (see below), whose sum is σ = 1008626411520. Its totient is φ = 139946400000.

The previous prime is 461521767611. The next prime is 461521767643. The reversal of 461521767642 is 246767125164.

It is not an unprimeable number, because it can be changed into a prime (461521767643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1394325417 + ... + 1394325747.

It is an arithmetic number, because the mean of its divisors is an integer number (7879893840).

Almost surely, 2^461521767642 is an apocalyptic number.

461521767642 is an abundant number, since it is smaller than the sum of its proper divisors (547104643878).

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

461521767642 is a wasteful number, since it uses less digits than its factorization.

461521767642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140.

The product of its digits is 3386880, while the sum is 51.

The spelling of 461521767642 in words is "four hundred sixty-one billion, five hundred twenty-one million, seven hundred sixty-seven thousand, six hundred forty-two".