1025451723072 has 112 divisors (see below), whose sum is σ = 3104112216960. Its totient is φ = 292670472192.

The previous prime is 1025451723031. The next prime is 1025451723077. The reversal of 1025451723072 is 2703271545201.

It is a tau number, because it is divible by the number of its divisors (112).

It is a self number, because there is not a number n which added to its sum of digits gives 1025451723072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025451723077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 837928 + ... + 1659224.

Almost surely, 2^{1025451723072} is an apocalyptic number.

1025451723072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025451723072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1552056108480).

1025451723072 is an abundant number, since it is smaller than the sum of its proper divisors (2078660493888).

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

1025451723072 is an equidigital number, since it uses as much as digits as its factorization.

1025451723072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822248 (or 822238 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 1025451723072 in words is "one trillion, twenty-five billion, four hundred fifty-one million, seven hundred twenty-three thousand, seventy-two".