65050751987 has 32 divisors (see below), whose sum is σ = 73560493440. Its totient is φ = 57128647680.

The previous prime is 65050751981. The next prime is 65050751993. The reversal of 65050751987 is 78915705056.

It is an interprime number because it is at equal distance from previous prime (65050751981) and next prime (65050751993).

It is not a de Polignac number, because 65050751987 - 2²⁴ = 65033974771 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65050751981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4710689 + ... + 4724477.

It is an arithmetic number, because the mean of its divisors is an integer number (2298765420).

Almost surely, 2^65050751987 is an apocalyptic number.

65050751987 is a deficient number, since it is larger than the sum of its proper divisors (8509741453).

65050751987 is a wasteful number, since it uses less digits than its factorization.

65050751987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14063.

The product of its (nonzero) digits is 2646000, while the sum is 53.

The spelling of 65050751987 in words is "sixty-five billion, fifty million, seven hundred fifty-one thousand, nine hundred eighty-seven".