72974377726 has 16 divisors (see below), whose sum is σ = 109991597184.
Its totient is φ = 36310629024.
The previous prime is 72974377643. The next prime is 72974377741. The reversal of 72974377726 is 62777347927.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1291156 + ... + 1346488.
It is an arithmetic number, because the mean of its divisors is an integer number (6874474824).
Almost surely, 272974377726 is an apocalyptic number.
72974377726 is a deficient number, since it is larger than the sum of its proper divisors (37017219458).
72974377726 is a wasteful number, since it uses less digits than its factorization.
72974377726 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 58515.
The product of its digits is 43563744, while the sum is 61.
The spelling of 72974377726 in words is "seventy-two billion, nine hundred seventy-four million, three hundred seventy-seven thousand, seven hundred twenty-six".