28430380954 has 4 divisors (see below), whose sum is σ = 42645571434. Its totient is φ = 14215190476.

The previous prime is 28430380943. The next prime is 28430380997. The reversal of 28430380954 is 45908303482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45908303482 = 2 ⋅22954151741.

It can be written as a sum of positive squares in only one way, i.e., 23918169025 + 4512211929 = 154655^2 + 67173^2 .

It is a super-2 number, since 2×28430380954² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7107595237 + ... + 7107595240.

Almost surely, 2^28430380954 is an apocalyptic number.

28430380954 is a deficient number, since it is larger than the sum of its proper divisors (14215190480).

28430380954 is a wasteful number, since it uses less digits than its factorization.

28430380954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14215190479.

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 28430380954 in words is "twenty-eight billion, four hundred thirty million, three hundred eighty thousand, nine hundred fifty-four".