7770470400 has 1152 divisors, whose sum is σ = 36072691200. Its totient is φ = 1592524800.

The previous prime is 7770470399. The next prime is 7770470417. The reversal of 7770470400 is 40740777.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 106444764 + ... + 106444836.

It is an arithmetic number, because the mean of its divisors is an integer number (31313100).

Almost surely, 2^7770470400 is an apocalyptic number.

7770470400 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7770470400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18036345600).

7770470400 is an abundant number, since it is smaller than the sum of its proper divisors (28302220800).

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

7770470400 is a wasteful number, since it uses less digits than its factorization.

7770470400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 38416, while the sum is 36.

The square root of 7770470400 is about 88150.2716955541. The cubic root of 7770470400 is about 1980.6866305475.

The spelling of 7770470400 in words is "seven billion, seven hundred seventy million, four hundred seventy thousand, four hundred".