4402520001972 has 72 divisors (see below), whose sum is σ = 11168230784256. Its totient is φ = 1462283371584.

The previous prime is 4402520001961. The next prime is 4402520001973. The reversal of 4402520001972 is 2791000252044.

4402520001972 is a `hidden beast` number, since 4 + 40 + 2 + 520 + 0 + 0 + 1 + 97 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4402520001973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28487173 + ... + 28641299.

It is an arithmetic number, because the mean of its divisors is an integer number (155114316448).

Almost surely, 2^{4402520001972} is an apocalyptic number.

It is an amenable number.

4402520001972 is an abundant number, since it is smaller than the sum of its proper divisors (6765710782284).

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

4402520001972 is a wasteful number, since it uses less digits than its factorization.

4402520001972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156957 (or 156952 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 4402520001972 in words is "four trillion, four hundred two billion, five hundred twenty million, one thousand, nine hundred seventy-two".