501279470772 has 12 divisors (see below), whose sum is σ = 1169652098496. Its totient is φ = 167093156920.

The previous prime is 501279470771. The next prime is 501279470807. The reversal of 501279470772 is 277074972105.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×501279470772² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501279470771) 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, 20886644604 + ... + 20886644627.

It is an arithmetic number, because the mean of its divisors is an integer number (97471008208).

Almost surely, 2^501279470772 is an apocalyptic number.

It is an amenable number.

501279470772 is an abundant number, since it is smaller than the sum of its proper divisors (668372627724).

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

501279470772 is a wasteful number, since it uses less digits than its factorization.

501279470772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41773289238 (or 41773289236 counting only the distinct ones).

The product of its (nonzero) digits is 1728720, while the sum is 51.

The spelling of 501279470772 in words is "five hundred one billion, two hundred seventy-nine million, four hundred seventy thousand, seven hundred seventy-two".