1451620241244 has 36 divisors (see below), whose sum is σ = 3670116174816. Its totient is φ = 483775463808.

The previous prime is 1451620241219. The next prime is 1451620241249. The reversal of 1451620241244 is 4421420261541.

1451620241244 is a `hidden beast` number, since 1 + 4 + 5 + 1 + 620 + 2 + 4 + 1 + 24 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-4 number, since 4×1451620241244⁴ (a number of 50 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1451620241199 and 1451620241208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451620241249) 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, 3900829 + ... + 4256724.

Almost surely, 2^{1451620241244} is an apocalyptic number.

It is an amenable number.

1451620241244 is an abundant number, since it is smaller than the sum of its proper divisors (2218495933572).

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

1451620241244 is a wasteful number, since it uses less digits than its factorization.

1451620241244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8162506 (or 8162501 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The spelling of 1451620241244 in words is "one trillion, four hundred fifty-one billion, six hundred twenty million, two hundred forty-one thousand, two hundred forty-four".