61438424384420 has 96 divisors (see below), whose sum is σ = 130086779880960. Its totient is φ = 24373353021440.

The previous prime is 61438424384341. The next prime is 61438424384443. The reversal of 61438424384420 is 2448342483416.

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, 1193857490 + ... + 1193908950.

It is an arithmetic number, because the mean of its divisors is an integer number (1355070623760).

Almost surely, 2^{61438424384420} is an apocalyptic number.

It is an amenable number.

61438424384420 is an abundant number, since it is smaller than the sum of its proper divisors (68648355496540).

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

61438424384420 is a wasteful number, since it uses less digits than its factorization.

61438424384420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52733 (or 52731 counting only the distinct ones).

The product of its (nonzero) digits is 14155776, while the sum is 53.

The spelling of 61438424384420 in words is "sixty-one trillion, four hundred thirty-eight billion, four hundred twenty-four million, three hundred eighty-four thousand, four hundred twenty".