7628461551 has 8 divisors (see below), whose sum is σ = 11301424560. Its totient is φ = 5085641016.

The previous prime is 7628461523. The next prime is 7628461583. The reversal of 7628461551 is 1551648267.

7628461551 is a `hidden beast` number, since 7 + 6 + 28 + 4 + 615 + 5 + 1 = 666.

It is not a de Polignac number, because 7628461551 - 2¹³ = 7628453359 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7628461497 and 7628461506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7628461151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141267780 + ... + 141267833.

It is an arithmetic number, because the mean of its divisors is an integer number (1412678070).

Almost surely, 2^7628461551 is an apocalyptic number.

7628461551 is a deficient number, since it is larger than the sum of its proper divisors (3672963009).

7628461551 is a wasteful number, since it uses less digits than its factorization.

7628461551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282535622 (or 282535616 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 7628461551 is about 87341.0645172132. The cubic root of 7628461551 is about 1968.5463909887.

The spelling of 7628461551 in words is "seven billion, six hundred twenty-eight million, four hundred sixty-one thousand, five hundred fifty-one".