611402032720831 has 32 divisors (see below), whose sum is σ = 703239569657856. Its totient is φ = 526425407040000.

The previous prime is 611402032720823. The next prime is 611402032720841. The reversal of 611402032720831 is 138027230204116.

611402032720831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 611402032720831 - 2³ = 611402032720823 is a prime.

It is a super-2 number, since 2×611402032720831² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611402032720841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34934251 + ... + 49428796.

It is an arithmetic number, because the mean of its divisors is an integer number (21976236551808).

Almost surely, 2^{611402032720831} is an apocalyptic number.

611402032720831 is a deficient number, since it is larger than the sum of its proper divisors (91837536937025).

611402032720831 is a wasteful number, since it uses less digits than its factorization.

611402032720831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84363543.

The product of its (nonzero) digits is 96768, while the sum is 40.

Adding to 611402032720831 its reverse (138027230204116), we get a palindrome (749429262924947).

The spelling of 611402032720831 in words is "six hundred eleven trillion, four hundred two billion, thirty-two million, seven hundred twenty thousand, eight hundred thirty-one".