611738677428 has 48 divisors (see below), whose sum is σ = 1513669187520. Its totient is φ = 191624072704.

The previous prime is 611738677421. The next prime is 611738677457. The reversal of 611738677428 is 824776837116.

It is a super-2 number, since 2×611738677428² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611738677421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2162898 + ... + 2429321.

It is an arithmetic number, because the mean of its divisors is an integer number (31534774740).

Almost surely, 2^611738677428 is an apocalyptic number.

611738677428 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

611738677428 is an abundant number, since it is smaller than the sum of its proper divisors (901930510092).

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

611738677428 is a wasteful number, since it uses less digits than its factorization.

611738677428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4592896 (or 4592894 counting only the distinct ones).

The product of its digits is 18966528, while the sum is 60.

The spelling of 611738677428 in words is "six hundred eleven billion, seven hundred thirty-eight million, six hundred seventy-seven thousand, four hundred twenty-eight".