6429620051 has 4 divisors (see below), whose sum is σ = 6517697112. Its totient is φ = 6341542992.

The previous prime is 6429620047. The next prime is 6429620081. The reversal of 6429620051 is 1500269246.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6429620051 - 2² = 6429620047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6429619993 and 6429620020.

It is not an unprimeable number, because it can be changed into a prime (6429620081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44038421 + ... + 44038566.

It is an arithmetic number, because the mean of its divisors is an integer number (1629424278).

Almost surely, 2^6429620051 is an apocalyptic number.

6429620051 is a deficient number, since it is larger than the sum of its proper divisors (88077061).

6429620051 is an equidigital number, since it uses as much as digits as its factorization.

6429620051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88077060.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 6429620051 is about 80184.9116168372. The cubic root of 6429620051 is about 1859.4953780995.

Adding to 6429620051 its reverse (1500269246), we get a palindrome (7929889297).

The spelling of 6429620051 in words is "six billion, four hundred twenty-nine million, six hundred twenty thousand, fifty-one".