144607761420 has 24 divisors (see below), whose sum is σ = 404901732144. Its totient is φ = 38562069696.

The previous prime is 144607761401. The next prime is 144607761427. The reversal of 144607761420 is 24167706441.

It is a super-2 number, since 2×144607761420² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144607761427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1205064619 + ... + 1205064738.

It is an arithmetic number, because the mean of its divisors is an integer number (16870905506).

Almost surely, 2^144607761420 is an apocalyptic number.

144607761420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144607761420 is an abundant number, since it is smaller than the sum of its proper divisors (260293970724).

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

144607761420 is a wasteful number, since it uses less digits than its factorization.

144607761420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410129369 (or 2410129367 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 144607761420 in words is "one hundred forty-four billion, six hundred seven million, seven hundred sixty-one thousand, four hundred twenty".