72912487048 has 8 divisors (see below), whose sum is σ = 136710913230. Its totient is φ = 36456243520.

The previous prime is 72912487001. The next prime is 72912487079. The reversal of 72912487048 is 84078421927.

It can be written as a sum of positive squares in only one way, i.e., 69887267044 + 3025220004 = 264362^2 + 55002^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 72912486986 and 72912487004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4557030433 + ... + 4557030448.

Almost surely, 2^72912487048 is an apocalyptic number.

It is an amenable number.

72912487048 is a deficient number, since it is larger than the sum of its proper divisors (63798426182).

72912487048 is a wasteful number, since it uses less digits than its factorization.

72912487048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9114060887 (or 9114060883 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 52.

The spelling of 72912487048 in words is "seventy-two billion, nine hundred twelve million, four hundred eighty-seven thousand, forty-eight".