7540780000 has 360 divisors, whose sum is σ = 21177758448. Its totient is φ = 2635776000.

The previous prime is 7540779973. The next prime is 7540780001. The reversal of 7540780000 is 870457.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7540780001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 77739952 + ... + 77740048.

Almost surely, 2^7540780000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7540780000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10588879224).

7540780000 is an abundant number, since it is smaller than the sum of its proper divisors (13636978448).

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

7540780000 is a wasteful number, since it uses less digits than its factorization.

7540780000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 7540780000 is about 86837.6646392566. The cubic root of 7540780000 is about 1960.9751499096.

The spelling of 7540780000 in words is "seven billion, five hundred forty million, seven hundred eighty thousand".