60721151887 has 4 divisors (see below), whose sum is σ = 66241256616. Its totient is φ = 55201047160.

The previous prime is 60721151879. The next prime is 60721151899. The reversal of 60721151887 is 78815112706.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 60721151887 - 2³ = 60721151879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60721152887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2760052348 + ... + 2760052369.

It is an arithmetic number, because the mean of its divisors is an integer number (16560314154).

Almost surely, 2^60721151887 is an apocalyptic number.

60721151887 is a deficient number, since it is larger than the sum of its proper divisors (5520104729).

60721151887 is a wasteful number, since it uses less digits than its factorization.

60721151887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5520104728.

The product of its (nonzero) digits is 188160, while the sum is 46.

The spelling of 60721151887 in words is "sixty billion, seven hundred twenty-one million, one hundred fifty-one thousand, eight hundred eighty-seven".