611401253430 has 64 divisors (see below), whose sum is σ = 1603103954688. Its totient is φ = 148001420160.

The previous prime is 611401253423. The next prime is 611401253461. The reversal of 611401253430 is 34352104116.

It is a super-2 number, since 2×611401253430² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1130929 + ... + 1581708.

It is an arithmetic number, because the mean of its divisors is an integer number (25048499292).

Almost surely, 2^611401253430 is an apocalyptic number.

611401253430 is an abundant number, since it is smaller than the sum of its proper divisors (991702701258).

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

611401253430 is a wasteful number, since it uses less digits than its factorization.

611401253430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713341.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 611401253430 its reverse (34352104116), we get a palindrome (645753357546).

The spelling of 611401253430 in words is "six hundred eleven billion, four hundred one million, two hundred fifty-three thousand, four hundred thirty".