20154313462 has 4 divisors (see below), whose sum is σ = 30231470196. Its totient is φ = 10077156730.

The previous prime is 20154313427. The next prime is 20154313471. The reversal of 20154313462 is 26431345102.

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

It is a super-2 number, since 2×20154313462² (a number of 21 digits) contains 22 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, 5038578364 + ... + 5038578367.

It is an arithmetic number, because the mean of its divisors is an integer number (7557867549).

Almost surely, 2^20154313462 is an apocalyptic number.

20154313462 is a deficient number, since it is larger than the sum of its proper divisors (10077156734).

20154313462 is a wasteful number, since it uses less digits than its factorization.

20154313462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10077156733.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 20154313462 its reverse (26431345102), we get a palindrome (46585658564).

The spelling of 20154313462 in words is "twenty billion, one hundred fifty-four million, three hundred thirteen thousand, four hundred sixty-two".