611778945030 has 32 divisors (see below), whose sum is σ = 1601748511488. Its totient is φ = 148310047200.

The previous prime is 611778945007. The next prime is 611778945031. The reversal of 611778945030 is 30549877116.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611778945031) 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, 926937466 + ... + 926938125.

It is an arithmetic number, because the mean of its divisors is an integer number (50054640984).

Almost surely, 2^611778945030 is an apocalyptic number.

611778945030 is an abundant number, since it is smaller than the sum of its proper divisors (989969566458).

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

611778945030 is a wasteful number, since it uses less digits than its factorization.

611778945030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853875612.

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 611778945030 in words is "six hundred eleven billion, seven hundred seventy-eight million, nine hundred forty-five thousand, thirty".