773738381376 has 315 divisors, whose sum is σ = 2424442876911. Its totient is φ = 243958438656.

The previous prime is 773738381363. The next prime is 773738381387. The reversal of 773738381376 is 673183837377.

It is a happy number.

The square root of 773738381376 is 879624.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1203325311 + ... + 1203325953.

Almost surely, 2^773738381376 is an apocalyptic number.

773738381376 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

773738381376 is the 879624-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 773738381376

773738381376 is an abundant number, since it is smaller than the sum of its proper divisors (1650704495535).

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

773738381376 is an frugal number, since it uses more digits than its factorization.

773738381376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348 (or 667 counting only the distinct ones).

The product of its digits is 74680704, while the sum is 63.

The spelling of 773738381376 in words is "seven hundred seventy-three billion, seven hundred thirty-eight million, three hundred eighty-one thousand, three hundred seventy-six".