7526799378 has 48 divisors (see below), whose sum is σ = 19071239616. Its totient is φ = 2100500640.

The previous prime is 7526799361. The next prime is 7526799409. The reversal of 7526799378 is 8739976257.

7526799378 is a `hidden beast` number, since 7 + 526 + 79 + 9 + 37 + 8 = 666.

It is a super-2 number, since 2×7526799378² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 689193 + ... + 700028.

It is an arithmetic number, because the mean of its divisors is an integer number (397317492).

Almost surely, 2^7526799378 is an apocalyptic number.

7526799378 is an abundant number, since it is smaller than the sum of its proper divisors (11544440238).

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

7526799378 is a wasteful number, since it uses less digits than its factorization.

7526799378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389279 (or 1389276 counting only the distinct ones).

The product of its digits is 40007520, while the sum is 63.

The square root of 7526799378 is about 86757.1286869269. The cubic root of 7526799378 is about 1959.7625161729.

The spelling of 7526799378 in words is "seven billion, five hundred twenty-six million, seven hundred ninety-nine thousand, three hundred seventy-eight".