2154650477 has 8 divisors (see below), whose sum is σ = 2463422400. Its totient is φ = 1846119744.

The previous prime is 2154650467. The next prime is 2154650513. The reversal of 2154650477 is 7740564512.

2154650477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2154650477 - 2⁴ = 2154650461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154650417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40727 + ... + 77252.

It is an arithmetic number, because the mean of its divisors is an integer number (307927800).

Almost surely, 2^2154650477 is an apocalyptic number.

It is an amenable number.

2154650477 is a deficient number, since it is larger than the sum of its proper divisors (308771923).

2154650477 is a wasteful number, since it uses less digits than its factorization.

2154650477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120595.

The product of its (nonzero) digits is 235200, while the sum is 41.

The square root of 2154650477 is about 46418.2127725745. The cubic root of 2154650477 is about 1291.5927838716.

The spelling of 2154650477 in words is "two billion, one hundred fifty-four million, six hundred fifty thousand, four hundred seventy-seven".