776742036 has 192 divisors, whose sum is σ = 2298852864. Its totient is φ = 199065600.

The previous prime is 776742023. The next prime is 776742047. The reversal of 776742036 is 630247677.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3222876 + ... + 3223116.

It is an arithmetic number, because the mean of its divisors is an integer number (11973192).

Almost surely, 2^776742036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 776742036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1149426432).

776742036 is an abundant number, since it is smaller than the sum of its proper divisors (1522110828).

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

776742036 is a wasteful number, since it uses less digits than its factorization.

776742036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 42.

The square root of 776742036 is about 27870.0921419360. The cubic root of 776742036 is about 919.2329917843.

The spelling of 776742036 in words is "seven hundred seventy-six million, seven hundred forty-two thousand, thirty-six".