7424551680 has 288 divisors, whose sum is σ = 29185572864. Its totient is φ = 1566425088.

The previous prime is 7424551649. The next prime is 7424551697. The reversal of 7424551680 is 861554247.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 338817 + ... + 360063.

Almost surely, 2^7424551680 is an apocalyptic number.

7424551680 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 7424551680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14592786432).

7424551680 is an abundant number, since it is smaller than the sum of its proper divisors (21761021184).

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

7424551680 is a wasteful number, since it uses less digits than its factorization.

7424551680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21291 (or 21277 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The square root of 7424551680 is about 86165.8382423104. The cubic root of 7424551680 is about 1950.8479047624.

The spelling of 7424551680 in words is "seven billion, four hundred twenty-four million, five hundred fifty-one thousand, six hundred eighty".