651142253222142 has 32 divisors (see below), whose sum is σ = 1440135294808320. Its totient is φ = 194612877673920.

The previous prime is 651142253222119. The next prime is 651142253222143. The reversal of 651142253222142 is 241222352241156.

It is a super-4 number, since 4×651142253222142⁴ (a number of 60 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 651142253222094 and 651142253222103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651142253222143) 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, 67573911042 + ... + 67573920677.

It is an arithmetic number, because the mean of its divisors is an integer number (45004227962760).

Almost surely, 2^{651142253222142} is an apocalyptic number.

651142253222142 is an abundant number, since it is smaller than the sum of its proper divisors (788993041586178).

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

651142253222142 is a wasteful number, since it uses less digits than its factorization.

651142253222142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135147831808.

The product of its digits is 460800, while the sum is 42.

The spelling of 651142253222142 in words is "six hundred fifty-one trillion, one hundred forty-two billion, two hundred fifty-three million, two hundred twenty-two thousand, one hundred forty-two".