61624501161909 has 8 divisors (see below), whose sum is σ = 93904001770560. Its totient is φ = 35214000663936.

The previous prime is 61624501161893. The next prime is 61624501161913. The reversal of 61624501161909 is 90916110542616.

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 61624501161909 - 2⁴ = 61624501161893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61624501163909) 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, 1467250027644 + ... + 1467250027685.

It is an arithmetic number, because the mean of its divisors is an integer number (11738000221320).

Almost surely, 2^{61624501161909} is an apocalyptic number.

It is an amenable number.

61624501161909 is a deficient number, since it is larger than the sum of its proper divisors (32279500608651).

61624501161909 is a wasteful number, since it uses less digits than its factorization.

61624501161909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2934500055339.

The product of its (nonzero) digits is 699840, while the sum is 51.

The spelling of 61624501161909 in words is "sixty-one trillion, six hundred twenty-four billion, five hundred one million, one hundred sixty-one thousand, nine hundred nine".