64146707374242 has 32 divisors (see below), whose sum is σ = 132769598011200. Its totient is φ = 20636786052288.

The previous prime is 64146707374229. The next prime is 64146707374261. The reversal of 64146707374242 is 24247370764146.

It is a happy number.

It is a super-2 number, since 2×64146707374242² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72157513 + ... + 73041084.

It is an arithmetic number, because the mean of its divisors is an integer number (4149049937850).

Almost surely, 2^{64146707374242} is an apocalyptic number.

64146707374242 is an abundant number, since it is smaller than the sum of its proper divisors (68622890636958).

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

64146707374242 is a wasteful number, since it uses less digits than its factorization.

64146707374242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145201170.

The product of its (nonzero) digits is 37933056, while the sum is 57.

The spelling of 64146707374242 in words is "sixty-four trillion, one hundred forty-six billion, seven hundred seven million, three hundred seventy-four thousand, two hundred forty-two".