73142120387 has 16 divisors (see below), whose sum is σ = 83793528000. Its totient is φ = 62541473280.

The previous prime is 73142120357. The next prime is 73142120399. The reversal of 73142120387 is 78302124137.

It is a cyclic number.

It is not a de Polignac number, because 73142120387 - 2⁶ = 73142120323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73142120387.

It is not an unprimeable number, because it can be changed into a prime (73142120357) 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, 9948989 + ... + 9956337.

It is an arithmetic number, because the mean of its divisors is an integer number (5237095500).

Almost surely, 2^73142120387 is an apocalyptic number.

73142120387 is a deficient number, since it is larger than the sum of its proper divisors (10651407613).

73142120387 is a wasteful number, since it uses less digits than its factorization.

73142120387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10606.

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 73142120387 in words is "seventy-three billion, one hundred forty-two million, one hundred twenty thousand, three hundred eighty-seven".