28270502061031 has 4 divisors (see below), whose sum is σ = 28285595763952. Its totient is φ = 28255408358112.

The previous prime is 28270502060929. The next prime is 28270502061049. The reversal of 28270502061031 is 13016020507282.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28270502061031 - 2¹³ = 28270502052839 is a prime.

It is a super-2 number, since 2×28270502061031² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28270502061331) 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, 7546848651 + ... + 7546852396.

It is an arithmetic number, because the mean of its divisors is an integer number (7071398940988).

Almost surely, 2^{28270502061031} is an apocalyptic number.

28270502061031 is a deficient number, since it is larger than the sum of its proper divisors (15093702921).

28270502061031 is a wasteful number, since it uses less digits than its factorization.

28270502061031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15093702920.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 28270502061031 in words is "twenty-eight trillion, two hundred seventy billion, five hundred two million, sixty-one thousand, thirty-one".