551380738629 has 8 divisors (see below), whose sum is σ = 840199220800. Its totient is φ = 315074707776.

The previous prime is 551380738627. The next prime is 551380738637. The reversal of 551380738629 is 926837083155.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 551380738629 - 2¹ = 551380738627 is a prime.

It is a super-2 number, since 2×551380738629² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551380738627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13128112804 + ... + 13128112845.

It is an arithmetic number, because the mean of its divisors is an integer number (105024902600).

Almost surely, 2^551380738629 is an apocalyptic number.

It is an amenable number.

551380738629 is a deficient number, since it is larger than the sum of its proper divisors (288818482171).

551380738629 is a wasteful number, since it uses less digits than its factorization.

551380738629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26256225659.

The product of its (nonzero) digits is 10886400, while the sum is 57.

The spelling of 551380738629 in words is "five hundred fifty-one billion, three hundred eighty million, seven hundred thirty-eight thousand, six hundred twenty-nine".