39898554972 has 48 divisors (see below), whose sum is σ = 94937179680. Its totient is φ = 13037027328.

The previous prime is 39898554907. The next prime is 39898554977. The reversal of 39898554972 is 27945589893.

It is a junction number, because it is equal to n+sod(n) for n = 39898554897 and 39898554906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39898554977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 706104 + ... + 760512.

It is an arithmetic number, because the mean of its divisors is an integer number (1977857910).

Almost surely, 2^39898554972 is an apocalyptic number.

It is an amenable number.

39898554972 is an abundant number, since it is smaller than the sum of its proper divisors (55038624708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39898554972 is a wasteful number, since it uses less digits than its factorization.

39898554972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55622 (or 55620 counting only the distinct ones).

The product of its digits is 195955200, while the sum is 69.

The spelling of 39898554972 in words is "thirty-nine billion, eight hundred ninety-eight million, five hundred fifty-four thousand, nine hundred seventy-two".