31432452546 has 64 divisors (see below), whose sum is σ = 71263825920. Its totient is φ = 9155173440.

The previous prime is 31432452539. The next prime is 31432452553. The reversal of 31432452546 is 64525423413.

It is an interprime number because it is at equal distance from previous prime (31432452539) and next prime (31432452553).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 390001 + ... + 463643.

It is an arithmetic number, because the mean of its divisors is an integer number (1113497280).

Almost surely, 2^31432452546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31432452546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35631912960).

31432452546 is an abundant number, since it is smaller than the sum of its proper divisors (39831373374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31432452546 is a wasteful number, since it uses less digits than its factorization.

31432452546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73911.

The product of its digits is 345600, while the sum is 39.

Adding to 31432452546 its reverse (64525423413), we get a palindrome (95957875959).

The spelling of 31432452546 in words is "thirty-one billion, four hundred thirty-two million, four hundred fifty-two thousand, five hundred forty-six".