28454624769901 has 12 divisors (see below), whose sum is σ = 33116369326236. Its totient is φ = 24346203009920.

The previous prime is 28454624769889. The next prime is 28454624769911. The reversal of 28454624769901 is 10996742645482.

It can be written as a sum of positive squares in 2 ways, for example, as 23456489376100 + 4998135393801 = 4843190^2 + 2235651^2 .

It is not a de Polignac number, because 28454624769901 - 2⁵ = 28454624769869 is a prime.

It is a super-3 number, since 3×28454624769901³ (a number of 41 digits) contains 333 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 (28454624769911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6916532890 + ... + 6916537003.

It is an arithmetic number, because the mean of its divisors is an integer number (2759697443853).

Almost surely, 2^{28454624769901} is an apocalyptic number.

It is an amenable number.

28454624769901 is a deficient number, since it is larger than the sum of its proper divisors (4661744556335).

28454624769901 is a wasteful number, since it uses less digits than its factorization.

28454624769901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13833069932 (or 13833069921 counting only the distinct ones).

The product of its (nonzero) digits is 209018880, while the sum is 67.

The spelling of 28454624769901 in words is "twenty-eight trillion, four hundred fifty-four billion, six hundred twenty-four million, seven hundred sixty-nine thousand, nine hundred one".