60491008720 has 40 divisors (see below), whose sum is σ = 140652477576. Its totient is φ = 24194531328.

The previous prime is 60491008597. The next prime is 60491008771. The reversal of 60491008720 is 2780019406.

It can be written as a sum of positive squares in 4 ways, for example, as 558093376 + 59932915344 = 23624^2 + 244812^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 60491008720.

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, 1522224 + ... + 1561456.

Almost surely, 2^60491008720 is an apocalyptic number.

It is an amenable number.

60491008720 is an abundant number, since it is smaller than the sum of its proper divisors (80161468856).

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

60491008720 is a wasteful number, since it uses less digits than its factorization.

60491008720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58519 (or 58513 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 60491008720 in words is "sixty billion, four hundred ninety-one million, eight thousand, seven hundred twenty".