7455478457560 has 128 divisors (see below), whose sum is σ = 19281571776000. Its totient is φ = 2541456681984.

The previous prime is 7455478457521. The next prime is 7455478457561. The reversal of 7455478457560 is 657548745547.

It is a super-2 number, since 2×7455478457560² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7455478457561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 489614667 + ... + 489629893.

It is an arithmetic number, because the mean of its divisors is an integer number (150637279500).

Almost surely, 2^{7455478457560} is an apocalyptic number.

7455478457560 is a gapful number since it is divisible by the number (70) 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 7455478457560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9640785888000).

7455478457560 is an abundant number, since it is smaller than the sum of its proper divisors (11826093318440).

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

7455478457560 is a wasteful number, since it uses less digits than its factorization.

7455478457560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25193 (or 25189 counting only the distinct ones).

The product of its (nonzero) digits is 658560000, while the sum is 67.

The spelling of 7455478457560 in words is "seven trillion, four hundred fifty-five billion, four hundred seventy-eight million, four hundred fifty-seven thousand, five hundred sixty".