28901752922951 has 4 divisors (see below), whose sum is σ = 28903155192504. Its totient is φ = 28900350653400.

The previous prime is 28901752922899. The next prime is 28901752922963. The reversal of 28901752922951 is 15922925710982.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28901752922951 is a prime.

It is a super-2 number, since 2×28901752922951² (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 (28901752922971) 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, 701103860 + ... + 701145081.

It is an arithmetic number, because the mean of its divisors is an integer number (7225788798126).

Almost surely, 2^{28901752922951} is an apocalyptic number.

28901752922951 is a deficient number, since it is larger than the sum of its proper divisors (1402269553).

28901752922951 is a wasteful number, since it uses less digits than its factorization.

28901752922951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402269552.

The product of its (nonzero) digits is 16329600, while the sum is 62.

The spelling of 28901752922951 in words is "twenty-eight trillion, nine hundred one billion, seven hundred fifty-two million, nine hundred twenty-two thousand, nine hundred fifty-one".