7507041738 has 128 divisors (see below), whose sum is σ = 18082842624. Its totient is φ = 2033337600.

The previous prime is 7507041727. The next prime is 7507041749. The reversal of 7507041738 is 8371407057.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7507041727) and next prime (7507041749).

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

It is a self number, because there is not a number n which added to its sum of digits gives 7507041738.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9143368 + ... + 9144188.

It is an arithmetic number, because the mean of its divisors is an integer number (141272208).

Almost surely, 2^7507041738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7507041738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9041421312).

7507041738 is an abundant number, since it is smaller than the sum of its proper divisors (10575800886).

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

7507041738 is a wasteful number, since it uses less digits than its factorization.

7507041738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020.

The product of its (nonzero) digits is 164640, while the sum is 42.

The square root of 7507041738 is about 86643.1863333753. The cubic root of 7507041738 is about 1958.0462394521.

The spelling of 7507041738 in words is "seven billion, five hundred seven million, forty-one thousand, seven hundred thirty-eight".