20154264454 has 4 divisors (see below), whose sum is σ = 30231396684. Its totient is φ = 10077132226.

The previous prime is 20154264379. The next prime is 20154264461. The reversal of 20154264454 is 45446245102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45446245102 = 2 ⋅22723122551.

It is a super-3 number, since 3×20154264454³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5038566112 + ... + 5038566115.

It is an arithmetic number, because the mean of its divisors is an integer number (7557849171).

Almost surely, 2^20154264454 is an apocalyptic number.

20154264454 is a deficient number, since it is larger than the sum of its proper divisors (10077132230).

20154264454 is a wasteful number, since it uses less digits than its factorization.

20154264454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10077132229.

The product of its (nonzero) digits is 153600, while the sum is 37.

The spelling of 20154264454 in words is "twenty billion, one hundred fifty-four million, two hundred sixty-four thousand, four hundred fifty-four".