61623354221450 has 24 divisors (see below), whose sum is σ = 130993644402912. Its totient is φ = 21128007161520.

The previous prime is 61623354221413. The next prime is 61623354221453. The reversal of 61623354221450 is 5412245332616.

It is not an unprimeable number, because it can be changed into a prime (61623354221453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88033362824 + ... + 88033363523.

It is an arithmetic number, because the mean of its divisors is an integer number (5458068516788).

Almost surely, 2^{61623354221450} is an apocalyptic number.

61623354221450 is an abundant number, since it is smaller than the sum of its proper divisors (69370290181462).

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

61623354221450 is a wasteful number, since it uses less digits than its factorization.

61623354221450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176066726366 (or 176066726361 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 61623354221450 in words is "sixty-one trillion, six hundred twenty-three billion, three hundred fifty-four million, two hundred twenty-one thousand, four hundred fifty".