123079961554 has 8 divisors (see below), whose sum is σ = 201403573488. Its totient is φ = 55945437060.

The previous prime is 123079961527. The next prime is 123079961593. The reversal of 123079961554 is 455169970321.

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

It is a super-2 number, since 2×123079961554² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2797271832 + ... + 2797271875.

It is an arithmetic number, because the mean of its divisors is an integer number (25175446686).

Almost surely, 2^123079961554 is an apocalyptic number.

123079961554 is a deficient number, since it is larger than the sum of its proper divisors (78323611934).

123079961554 is a wasteful number, since it uses less digits than its factorization.

123079961554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5594543720.

The product of its (nonzero) digits is 2041200, while the sum is 52.

The spelling of 123079961554 in words is "one hundred twenty-three billion, seventy-nine million, nine hundred sixty-one thousand, five hundred fifty-four".