7740521001 has 16 divisors (see below), whose sum is σ = 11469577920. Its totient is φ = 5159384640.

The previous prime is 7740520973. The next prime is 7740521021. The reversal of 7740521001 is 1001250477.

7740521001 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7740521001 - 2⁵ = 7740520969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (7740521021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139441 + ... + 186881.

It is an arithmetic number, because the mean of its divisors is an integer number (716848620).

Almost surely, 2^7740521001 is an apocalyptic number.

It is an amenable number.

7740521001 is a deficient number, since it is larger than the sum of its proper divisors (3729056919).

7740521001 is a wasteful number, since it uses less digits than its factorization.

7740521001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53493 (or 53487 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 7740521001 is about 87980.2307396383. The cubic root of 7740521001 is about 1978.1386616877.

Adding to 7740521001 its reverse (1001250477), we get a palindrome (8741771478).

The spelling of 7740521001 in words is "seven billion, seven hundred forty million, five hundred twenty-one thousand, one".