103628461821 has 8 divisors (see below), whose sum is σ = 138174041184. Its totient is φ = 69084261840.

The previous prime is 103628461777. The next prime is 103628461889. The reversal of 103628461821 is 128164826301.

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 103628461821 - 2³³ = 95038527229 is a prime.

It is a super-3 number, since 3×103628461821³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103628461421) 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, 154546 + ... + 480771.

It is an arithmetic number, because the mean of its divisors is an integer number (17271755148).

Almost surely, 2^103628461821 is an apocalyptic number.

It is an amenable number.

103628461821 is a deficient number, since it is larger than the sum of its proper divisors (34545579363).

103628461821 is an equidigital number, since it uses as much as digits as its factorization.

103628461821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689691.

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 103628461821 in words is "one hundred three billion, six hundred twenty-eight million, four hundred sixty-one thousand, eight hundred twenty-one".